Question

ut
ter
7/8]
in 5 seconds.
[Ans. 125 m)
9. A car travelling at 60 km/h uniformly retards for
10 s and attains a velocity of 45 km/h. Find the
retardation.
[Ans. 0.42 m/s
10. When brakes were applied to a car, it retarded
uniformly at 5 m/s2 and stopped after 15 s. Find
the initial velocity of the car.
(Ans. 75 m/s]
11. A bullet is fired into a wall with a velocity of 50 m/s.
If the bullet stops at a depth of 10 cm inside the
wall, find the retardation provided by the wall.
(Ans.12.5 km/s)
12. A car travelling at 18 km/h speeds up to 54 km/h in
5 seconds. What is its acceleration? [Ans. 2 m/s?)
13. A moving train is brought to rest within 20 seconds
by applying brakes. Find the initial velocity if the
retardation due to application of brakes is 2 m/s
[Ans. 40 m/s]
14. A racing car has uniform acceleration of 4 m/s2. How
much distance will it cover in 10 seconds after The start
an
me
s]
Of
/ST
92
мо​

Answer 1

Answer:

Ok

Explanation: