Question

1. A ball that is thrown vertically upward on the Moon returns to its starting point in 4.0 s. The acceleration due to gravity there is 1.60 m/s2 downward. Find the ball's original speed. 2.30 2. A truck starts from rest and moves with a constant acceleration of 5.0 m/s2 . Find its speed and the distance traveled after 4.0 s has elapsed. Ans. 20 m/s, 40 m 2.31 3. A box slides down an incline with uniform acceleration. It starts from rest and attains a speed of 2.7 m/s in 3.0 s. Find (a) the acceleration and (b) the distance moved in the first 6.0 s. Ans. (a) 0.90 m/s2 ; (b) 16 m 2.32 4. A car is accelerating uniformly as it passes two checkpoints that are 30 m apart. The time taken between checkpoints is 4.0 s, and the car's speed at the first checkpoint is 5.0 m/s. Find the car's acceleration and its speed at the second checkpoint. Ans. 1.3 m/s2 , 10 m/s 2.33 5. An auto's velocity increases uniformly from 6.0 m/s to 20 m/s while covering 70 m in a straight line. Find the acceleration and the time taken. Ans. 2.6 m/s2 , 5.4 s

          1. A ball that is thrown vertically upward on the Moon returns to its starting point in 4.0 s. The acceleration due to gravity there is 1.60 m/s2 downward. Find the ball's original speed. 2.30

2. A truck starts from rest and moves with a constant acceleration of 5.0 m/s2 . Find its speed and the distance traveled after 4.0 s has elapsed. Ans. 20 m/s, 40 m 2.31

3. A box slides down an incline with uniform acceleration. It starts from rest and attains a speed of 2.7 m/s in 3.0 s. Find (a) the acceleration and (b) the distance moved in the first 6.0 s. Ans. (a) 0.90 m/s2 ; (b) 16 m 2.32

4. A car is accelerating uniformly as it passes two checkpoints that are 30 m apart. The time taken between checkpoints is 4.0 s, and the car's speed at the first checkpoint is 5.0 m/s. Find the car's acceleration and its speed at the second checkpoint. Ans. 1.3 m/s2 , 10 m/s 2.33

5. An auto's velocity increases uniformly from 6.0 m/s to 20 m/s while covering 70 m in a straight line. Find the acceleration and the time taken. Ans. 2.6 m/s2 , 5.4 s

1. A ball that is thrown vertically upward on the Moon returns to its starting point in 4.0 s. The acceleration due to gravity there is 1.60 m/s2 downward. Find the ball's original speed. 2.30

2. A truck starts from rest and moves with a constant acceleration of 5.0 m/s2 . Find its speed and the distance traveled after 4.0 s has elapsed. Ans. 20 m/s, 40 m 2.31

3. A box slides down an incline with uniform acceleration. It starts from rest and attains a speed of 2.7 m/s in 3.0 s. Find (a) the acceleration and (b) the distance moved in the first 6.0 s. Ans. (a) 0.90 m/s2 ; (b) 16 m 2.32

4. A car is accelerating uniformly as it passes two checkpoints that are 30 m apart. The time taken between checkpoints is 4.0 s, and the car's speed at the first checkpoint is 5.0 m/s. Find the car's acceleration and its speed at the second checkpoint. Ans. 1.3 m/s2 , 10 m/s 2.33

5. An auto's velocity increases uniformly from 6.0 m/s to 20 m/s while covering 70 m in a straight line. Find the acceleration and the time taken. Ans. 2.6 m/s2 , 5.4 s

Added by Cristian S.

Question

Please give Ace some feedback