1. Suppose a free-fall ride at an amusement park starts at rest and is in free fall. What is the velocit of the ride after 2.3 s? How far do people on the ride fall during the 2.3-s time period?
1. Suppose a free-fall ride at an amusement park starts at rest and is in free fall. What is the velocit of the ride after 2.3 s? How far do people on the ride fall during the 2.3-s time period?
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Transcribed Image Text:A. Free Falling Bodies problems
1. Suppose a free-fall ride at an amusement park starts at rest and is in free fall. What is the velocity
of the ride after 2.3 s? How far do people on the ride fall during the 2.3-s time period?
2. Velocity and Acceleration Suppose you throw a ball straight up into the air. Describe the changes in the
velocity of the balI. Describe the changes in the acceleration of the ball.
3. A weather balloon is floating at a constant height above Earth when it releases a pack of instruments.
a. If the pack hits the ground with a downward velocity of 73.5 m/s, how far did the pack fall?
b. Calculate the distance the ball has rolled at the end of 2.2 s.
4. An object dropped from the top of a cliff. It is seen to hit the ground below after 5 seconds. Determine its
velocity just before hitting the ground. Ignore air resitance.
5.. A ball dropped from a height. Find
(a) Acceleration
(b) Distance after 8 seconds
(c) Time in air if final velocity is 25 m/s.
B. Projectile Motion problems
1. A projectile starting from ground hits a target on the ground located at a distance of 1000
meters after 40 seconds.
a) What is the size of the angle 0 ?
b) At what initial velocity was the projectile launched?
2. A cannon is fired with muzzle velocity of 150 m/s at an angle of elevation of 45°.
a) What is the maximum height the projectile reaches?
b) What is the time of flight?
c) How far away did the projectile land? (Range)
d) Where is the projectile at 10 seconds after firing?
3.. A soccer ball is hit at 32.2 m/s at an angle of 29°. What would be the range of the ball?
4. A baseball is hit at 44.2 m/s at an angle of 58.0°. What would be the maximum height of the ball?
5. A golf ball is hit and has a range of 638 m. The ball is in the air for a total of 4.8 s. If the ball was struck at
an angle of 10.0°, what is the ball's maximum height during the flight?
Transcribed Image Text:3. A weather balloon is floating at a constant height above Earth when it releases a pack of instruments.
a. If the pack hits the ground with a downward velocity of 73.5 m/s, how far did the pack fall?
b. Calculate the distance the ball has rolled at the end of 2.2 s.
4. An object dropped from the top of a cliff. It is seen to hit the ground below after 5 seconds. Determine its
velocity just before hitting the ground. Ignore air resitance.
5.. A ball dropped from a height. Find
(a) Acceleration
(b) Distance after 8 seconds
(c) Time in air if final velocity is 25 m/s.
B. Projectile Motion problems
1. A projectile starting from ground hits a target on the ground located at a distance of 1000
meters after 40 seconds.
a) What is the size of the angle e ?
b) At what initial velocity was the projectile launched?
2. A cannon is fired with muzzle velocity of 150 m/s at an angle of elevation of 45°.
a) What is the maximum height the projectile reaches?
b) What is the time of flight?
c) How far away did the projectile land? (Range)
d) Where is the projectile at 10 seconds after firing?
3. . A soccer ball is hit at 32.2 m/s at an angle of 29°. What would be the range of the ball?
4. A baseball is hit at 44.2 m/s at an angle of 58.0°. What would be the maximum height of the ball?
5. A golf ball is hit and has a range of 638 m. The ball is in the air for a total of 4.8 s. If the ball was struck at
an angle of 10.0°, what is the ball's maximum height during the flight?
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