Question

Projectile motion without much info

At time t0() = 0.0 s an object is fired into the air from the ground. At time t = 3.0 s the object has a velocity given by:

v = 8.6 ˆi + 4.8 ˆj m/s


a) the horizontal range of the object.

b) the object’s maximum height above the ground

c) the object’s velocity just before it hits the ground.

image.png

0 0
Add a comment Improve this question Transcribed image text
Answer #1

R lys i tot 86mb tos UX let at tos, projection velocity is u = Ux î + Uy i - 0 Horizontal. component of velocity doesnt chan

Add a comment
Answer #2

@ At the top most point the y-component of uelocity becames zero y = lytat 0= 4.8-9.8xt #=0.491 Total time to go up = 3 +0.49

Add a comment
Know the answer?
Add Answer to:
Projectile motion without much info
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • At a height h = 44.0 m above the ground a rocket is fired at an...

    At a height h = 44.0 m above the ground a rocket is fired at an initial speed v0 = 168.0 m/s at an angle θ = 27 degrees above the horizontal. Ignore air resistance. The magnitude of the gravitational acceleration is 9.8 m/s2. Choose the RIGHT as positive x-direction. Choose UPWARD as psotitive y-direction. Keep 2 decimal places in all answers (a) Find v0x, the x component of the initial velocity (in m/s) (b) Find v0y, the y component...

  • Exactly 3.1 s after a projectile is fired into the air from the ground, it is...

    Exactly 3.1 s after a projectile is fired into the air from the ground, it is observed to have a velocity v⃗  = (9.0 i^ + 4.7 j^)m/s, where the x axis is horizontal and the y axis is positive upward. 1. Determine the horizontal range of the projectile 2. Determine its maximum height above the ground 3. Determine the speed of motion just before the projectile strikes the ground 4. Determine the angle of motion just before the projectile strikes...

  • Projectile Motion and Motion Diagrams 3.2 A ball rolls down a long ramp to a shoot...

    Projectile Motion and Motion Diagrams 3.2 A ball rolls down a long ramp to a shoot where it is released as a projectile with an initial speed of 20 m/s at an angel of 42° above horizontal and 4.0 m above the ground. See diagram. BALL RAMP GROUND A. Draw a complete motiongrantee the motion of the ball from it leaving the shoot until reaching the ground. B What is the maximum height above pre ground reached by the ball?...

  • A projectile is fired from ground level at an angle of 61 ∘ above the horizontal...

    A projectile is fired from ground level at an angle of 61 ∘ above the horizontal with an initial speed of 35 m/s . Part A: What is the magnitude of its instantaneous velocity at the moment it is fired? Express your answer in meters per second to two significant figures. Part B: What is the direction (relative to horizontal) of its instantaneous velocity at the moment it is fired? Part C: What is the magnitude of its instantaneous velocity...

  • Projectile Motion: An object is fired into a projectile with an initial velocity of 250 m/s at an angle of 60° with resp...

    Projectile Motion: An object is fired into a projectile with an initial velocity of 250 m/s at an angle of 60° with respect to the horizontal. a) What is the maximum height it reaches? b) What is the maximum horizontal distance it reaches? c) What is the time of flight of the particle? d) What is its velocity as it reaches the ground? e) Locate the object after 6 seconds.

  • The position vector r describes the path of an object moving in space. Position Vector Time...

    The position vector r describes the path of an object moving in space. Position Vector Time r(t) = 12; + tj + 243/2k t = 4 (a) Find the velocity vector, speed, and acceleration vector of the object. v(t) = s(t) a(t) (b) Evaluate the velocity vector and acceleration vector of the object at the given value of t. (4) = a(4) 11 Use the model for projectile motion, assuming there is no air resistance and g = 32 feet...

  • 0 - Incomplete Projectile Motion: Look again at chapter 3, sections 7 and 8. Problem 1:...

    0 - Incomplete Projectile Motion: Look again at chapter 3, sections 7 and 8. Problem 1: Problem 3.29 of Giancoli lan bah 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...

  • Projectile Motion

    A cannonball is fired horizontally from the top of a cliff. The cannon is at height H = 70.0 m above ground level, and the ball is fired with initial horizontal speedv_0. Assume acceleration due to gravity to be g = 9.80 m/s^2.Assume that the cannon is fired at time t = 0 and that the cannonball hits the ground at time t_g. What is the y position of the cannonball at the time tg/2?I found it tg/2 to be...

  • A ball is shot from the ground into the air. At a height of 9.80 m,...

    A ball is shot from the ground into the air. At a height of 9.80 m, its velocity is v = (8.50i + 4.00j) m/s, with i horizontal and j upward. To what maximum height does the ball rise? What total horizontal distance does the ball travel? What is the magnitude of the ball's velocity just before it hits the ground? What is the angle (below the horizontal) of the ball's velocity just before it hits the ground?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT