Galilean Equations 2

                                                    

 (NOTE: In all these questions the acceleration is a constant.)

1.      A car accelerates at a rate of 10 ms^-2 for a time of 4 seconds.
It reaches a speed of 52 ms^-1. Calculate its initial speed.
Answer

2.      A bullet is at rest. It travels a distance of 0.34 m in a time of 0.0095 seconds.
Calculate its acceleration.
Answer

3.      A falcon is diving at a speed of 30 ms^-1.
It accelerates at a rate of 40 ms^-2 and reaches a speed of 100 ms^-1.
Calculate the distance it travels during its acceleration.
Answer

4.      A snail is at rest.
It accelerates at a rate of 0.00075 ms^-2.
Calculate the time it takes to reach a speed of 0.0135 ms^-1.
Answer

5.      A blue shark accelerates at a rate of 16 ms^-2­ for a time of 0.8 seconds.
During this time it travels a distance of 11.52 m.
Calculate its initial speed.
Answer

6.      A bicycle is travelling at a speed of 7 ms^-1.
After accelerating over a distance of  57.72 m it attains a speed of 22.6 ms^-1.
Calculate the value of its acceleration.
Answer

7.      A jet is flying at a speed of 115 ms^-1.
It travels a distance of 156 m in a time of 1.2 seconds.
Calculate the value of its acceleration.
Answer

8.      A car is travelling at a speed of 30 ms^-1.
It decelerates at a rate of 12 ms^-2.
Calculate the time taken for the car to come to rest.
(Note: deceleration is negative acceleration.)
Answer

9.      A dog is at rest.
It accelerates at a rate of 17 ms^-2 over a distance of 1.36 m.
Calculate the time it takes to cover this distance.
Answer

10.  A stone is thrown vertically upwards. It decelerates at a rate of 9.8 ms^-2.
It reaches a greatest height of 16.53 m.
Calculate its initial speed.
Answer