Question

A car moving at a velocity of 25 m/s, accelerates at a rate of 6 m/s2. Find its velocity after 3s.
2. An object is dropped from rest. Calculate its velocity after 2.5s if it is dropped:
a. On Earth, where the acceleration due to gravity is 9.8m/s2.
b. On Mars, where the acceleration due to gravity is 3.8m/s2 .
3. A motorbike is travelling with a velocity of 3m/s. It accelerates at a rate of 9.3m/s for 1.8s.
Calculate the distance it travels in this time.
4. A Tesla Roadster car accelerates from rest at a rate of 7.1m/s2 for a time of 3.9s. Calculate the
distance it travels inn this time.
5. A bullet accelerates at a rate of 90,000m/s2 from rest. Calculate its velocity if it travels a
distance of 0.5m while accelerating.
6. An aircraft is travelling along a runway at a velocity of 25m/s. It accelerates at a rate of 4m/s2
for a distance of 750m before taking off. Calculate its take-off speed.
7. A car is travelling at a speed of 21m/s. It accelerates at an average rate of 3m/s2 for a time of
4 seconds. Find the distance it travels.
8. A car accelerates at a rate of 10m/s2 for a time of 4s. It reaches a speed of 52 m/s. Calculate its
initial speed.
9. A bullet is at rest. It travels a distance of 0.34m in a time of 0.0095 seconds. Calculate its
acceleration.
10. A falcon is diving at a speed of30m/s. It accelerates at a rate of 40m/s2 and reaches a speed of
100m/s. Calculate the distance it travels during its acceleration.
2
11. A snail is at rest. It accelerates at a rate of 0.00075m/s . Calculate the time it takes to reach a
speed of 0.0135m/s.
12. A blue shark accelerates at a rate of 16m/s2 for a time of 0.8s. During this time it travels a
distance of 11.52m. Calculate its initial speed.
13. A car is travelling at a speed of 30m/s. It decelerates at a rate of 12m/s . Calculate the time
taken for the car to come to rest.
14. A stone is thrown vertically upwards. It decelerates at a rate of 9.8m/s . It reaches a greatest
height of 16.53m. Calculate its initial speed.
15. A rubber toy pops up to a maximum height of 2.51m. Find its initial velocity

Answer 1

Answer:

1

by using v=u+at

v=25+6*3

we get

v=43m per sec

Explanation:

Answer 2

24 m/s IS the Answer for you