A projectile with a mass of 20 g is fired from a gun at a 55...
A projectile with a mass of 20 g is fired from a gun at a 55 degree angle from the horizontal with a velocity of 550 m/s. If air resistance is neglected, what is its kinetic energy when it hits the ground?
Homework Answers
when the projectile reaches the ground all of its energy is converted into kinetic energy so
K.E=
=
=3025joule
A projectile is fired horizontally from a gun that is 66.0 m above flat ground, emerging...
A projectile is fired horizontally from a gun that is 66.0 m above flat ground, emerging from the gun with a speed of 250 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? m (c) What is the magnitude of the vertical component of its velocity as it strikes the ground? m/s
A projectile is fired horizontally from a gun that is 32.0 m above flat ground, emerging...
A projectile is fired horizontally from a gun that is 32.0 m above flat ground, emerging from the gun with a speed of 300 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? (c) What is the magnitude of the vertical component of its velocity as it strikes the ground?
7. Assuming there is negligible air resistance, what is the range of a projectile fired from...
7. Assuming there is negligible air resistance, what is the range of a projectile fired from ground level with a velocity of 30.0 m/s at an angle of 30° to the horizontal? 20 G
If a projectile is fired with an initial velocity of vo meters per second at an...
If a projectile is fired with an initial velocity of vo meters per second at an angle a above the horizontal and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equations x = (vo cos(a)t y = (vo sin(a)t - +- 1012 where g is the acceleration due to gravity (9.8 m/s2). (Round your answers to the nearest whole number.) (a) If a gun is fired with a = 30°...
A projectile fired from a gun has initial horizontal and vertical components of velocity equal to...
A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 30 m/s and 40 m/s, respectively. a. determine the initial speed of the projectile b. at what angle is the projectile fired (measured with respect to the horizontal)? c. approximately how long does it take the projectile to reach the highest point in its trajectory?
Q6 A projectile is fired horizontally from a gun that is 45.0 m above flat ground,...
Q6 A projectile is fired horizontally from a gun that is 45.0 m above flat ground, emerging from the gun with a speed of 250 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? [3+2]
a projectile is fired with an initial speed of 2000 m/s at an angle 21 degrees...
a projectile is fired with an initial speed of 2000 m/s at an angle 21 degrees above the horizontal. if air resistance is neglected , what is the velocity in m/s at the highest point of trajectory ?
A gun is fired parallel to the ground. As the bullet leaves the barrel of the...
A gun is fired parallel to the ground. As the bullet leaves the barrel of the gun with a velocity of 200 m/s, find the following (neglecting air resistance): 1. a) Velocity in the x direction (vx) b) Acceleration in the x direction (a) c Velocity in the y direction (Vy) d) Acceleration in the y direction (ay) e) Assuming the barrel is 50m above the ground, calculate how much time passes before the bullet hits the ground. Using your...
An M-16 is fired from level ground at an upwards angle of 10 degrees with respect...
An M-16 is fired from level ground at an upwards angle of 10 degrees with respect to the horizontal. The initial velocity of the bullet is 948 m/s, but because it is fired at a 10 degree angle, the vertical component of the initial velocity is 165 m/s and the horizontal component is 934 m/s. Ignore air resistance and the curvature of the earth in this problem. (Hint: See the videos Projectile Motion Parts 9-13. For questions 9-14 and 17,...
1. If a projectile is fired with an initial velocity of vo meters per second at...
If a projectile is fired with an initial velocity of v0 meters per second at an angle α above the horizontal, and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equationsx=(v0 cos α) t y=(v0 sin α) t-1/2 g t2where g is the acceleration due to gravity (9.8 m / s2)(a) If a projectile is fired with α=45° and v0=900 m / s, when will it hit the ground? How...
A projectile is fired horizontally from a gun that is 66.0 m above flat ground, emerging from the gun with a speed of 250 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? m (c) What is the magnitude of the vertical component of its velocity as it strikes the ground? m/s
7. Assuming there is negligible air resistance, what is the range of a projectile fired from ground level with a velocity of 30.0 m/s at an angle of 30° to the horizontal? 20 G
If a projectile is fired with an initial velocity of vo meters per second at an angle a above the horizontal and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equations x = (vo cos(a)t y = (vo sin(a)t - +- 1012 where g is the acceleration due to gravity (9.8 m/s2). (Round your answers to the nearest whole number.) (a) If a gun is fired with a = 30°...
Q6 A projectile is fired horizontally from a gun that is 45.0 m above flat ground, emerging from the gun with a speed of 250 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? [3+2]
A gun is fired parallel to the ground. As the bullet leaves the barrel of the gun with a velocity of 200 m/s, find the following (neglecting air resistance): 1. a) Velocity in the x direction (vx) b) Acceleration in the x direction (a) c Velocity in the y direction (Vy) d) Acceleration in the y direction (ay) e) Assuming the barrel is 50m above the ground, calculate how much time passes before the bullet hits the ground. Using your...
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