Given the equation h = (- 4.9) t2 + vt + s, v is the initial...
Given the equation h = (- 4.9) t2 + vt + s, v is the initial velocity of the object and s is the initial height.
a) From your location at the top of a cliff, 55 m above a lake, throw a rock up into the air with a velocity of 15 m/s. It lands in the water directly below you. Write and equation that models this situation.
b) Determine the maximum height the rock attains and the number of seconds it takes to attain the maximum height.
c) How long is the rock in the air?
Homework Answers
Question 6 Flag question Marked out of 12.00 Not yet answered A rock is thrown with...
Question 6 Flag question Marked out of 12.00 Not yet answered A rock is thrown with an initial velocity of 30 m/s at an angle of 60 above the horizontal from a height of 1.5 m toward a cliff. After 4 seconds, the rock lands on the top edge of the cliff. (a) Calculate the height of the cliff, (b) Calculate the maximum height reached by the rock along its trajectory (c) Determine the speed of the rock just before...
9) A 2 kg object is thrown vertically upward with an initial velocity of 10 m/s....
9) A 2 kg object is thrown vertically upward with an initial velocity of 10 m/s. (a) What is its velocity at a point halfway to the maximum height it will attain? (a) What is the total time required for it to return to its initial position? (c) What is its acceleration at the maximum height? (d) What is its average speed during the complete trip? (neglect air resistance
A person on a cliff throws a ball with an initial velocity of 30.2 m/s at...
A person on a cliff throws a ball with an initial velocity of 30.2 m/s at an angle of 46.50 above the horizontal. If the initial height of the ball, compared to it impact location is, Y = 18.5 m, what is the maximum height it obtains, and where does it land? (ind both as measured from the base of the cliff Max height-Number Units Distance, X NumberUnits
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically...
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically up and attains an upward velocity of 50 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s. Answer in units of m/s 013 10.0 points A rock is thrown downward from an unknown height above the ground with an initial speed of 13 m/s....
1. A student standing on the edge of a cliff throws a rock downward at a...
1. A student standing on the edge of a cliff throws a rock downward at a speed of 7.5 m/s at an angle 40° below the horizontal. It takes the rock 2.4 seconds to hit the ground. How far from the base of the cliff will the rock land? a)18 m b)5.7 m c)13.8 m d)11.6 m 2. A person driving through a field has velocity components that are 30 m/s west and 20 m/s south. What is the magnitude...
Problem 2: I throw a ball, mass m-5.0kg, at an initial speed of 3.0m/s, at an...
Problem 2: I throw a ball, mass m-5.0kg, at an initial speed of 3.0m/s, at an initial height of 1.7m, but at an angle of 37' with respect to the horizontal. It lands on the ground, at a final height of zero. (a) What is the initial velocity? (This is a VECTOR. Define ti as the horizontal, and +j as the vertical.) (b) What is the time when the ball obtains its maximum height? (c) What is the maximum height...
Problem 2: I throw a ball, mass m-5.0kg, at an initial speed of 3.0m/s, at an...
Problem 2: I throw a ball, mass m-5.0kg, at an initial speed of 3.0m/s, at an initial height of 1.7m, but at ar angle of 37" with respect to the horizontal. It lands on the ground, at a final height of zero. (a) What is the initial velocity? (This is a VECTOR. Define ti as the horizontal, and +j as the vertical.) (b) What is the time when the ball obtains its maximum height? (c) What is the maximum height...
throw a baseball directly upward at time t0 at an initial speed of 13.5 m/s. What...
throw a baseball directly upward at time t0 at an initial speed of 13.5 m/s. What is the maximum eight the ball reaches above where it leaves your hand? At what times does the ball pass through half the maximum height? Ignore air resistance and take g 9.80 m/s Maximum height: Number Earlier time at half maximum height: Number Later time at half maximum height Number
4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coe...
#4 and #5!!
4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20. What horizontal force must be applied to the box to cause it to start sliding along the surface? 4 :0 ovit 5. A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 300 above the horizontal. It strikes a target above the ground...
1. A golf ball is hit with an initial velocity of 50.0 m/s at an angle...
1. A golf ball is hit with an initial velocity of 50.0 m/s at an angle of 34 degrees above the horizontal. If the golf ball lands on the same horizontal level, determine the time it takes the ball to stay in the air. 2. A ball is thrown horizontally, with a speed of 10 m/s, from the top of a 4.9 meter tall hill. How far from the point on the ground directly below the launch point does the...
Question 6 Flag question Marked out of 12.00 Not yet answered A rock is thrown with an initial velocity of 30 m/s at an angle of 60 above the horizontal from a height of 1.5 m toward a cliff. After 4 seconds, the rock lands on the top edge of the cliff. (a) Calculate the height of the cliff, (b) Calculate the maximum height reached by the rock along its trajectory (c) Determine the speed of the rock just before...
A person on a cliff throws a ball with an initial velocity of 30.2 m/s at an angle of 46.50 above the horizontal. If the initial height of the ball, compared to it impact location is, Y = 18.5 m, what is the maximum height it obtains, and where does it land? (ind both as measured from the base of the cliff Max height-Number Units Distance, X NumberUnits
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically up and attains an upward velocity of 50 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s. Answer in units of m/s 013 10.0 points A rock is thrown downward from an unknown height above the ground with an initial speed of 13 m/s....
Problem 2: I throw a ball, mass m-5.0kg, at an initial speed of 3.0m/s, at an initial height of 1.7m, but at an angle of 37' with respect to the horizontal. It lands on the ground, at a final height of zero. (a) What is the initial velocity? (This is a VECTOR. Define ti as the horizontal, and +j as the vertical.) (b) What is the time when the ball obtains its maximum height? (c) What is the maximum height...
Problem 2: I throw a ball, mass m-5.0kg, at an initial speed of 3.0m/s, at an initial height of 1.7m, but at ar angle of 37" with respect to the horizontal. It lands on the ground, at a final height of zero. (a) What is the initial velocity? (This is a VECTOR. Define ti as the horizontal, and +j as the vertical.) (b) What is the time when the ball obtains its maximum height? (c) What is the maximum height...
throw a baseball directly upward at time t0 at an initial speed of 13.5 m/s. What is the maximum eight the ball reaches above where it leaves your hand? At what times does the ball pass through half the maximum height? Ignore air resistance and take g 9.80 m/s Maximum height: Number Earlier time at half maximum height: Number Later time at half maximum height Number
#4 and #5!!
4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20. What horizontal force must be applied to the box to cause it to start sliding along the surface? 4 :0 ovit 5. A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 300 above the horizontal. It strikes a target above the ground...
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