Question

Q1. An athlete completes one round of a circular track of radius Rin 40 sec. What will
be his displacement at the end of 2 min. 20 sec.
Q2. The second's hand of a watch is 2 cm long. What is the speed of the tip of
this hand.
Q3. A body covers half the distance with a speed of 20 m/sec and the other half with
a speed of 30 m/sec. What is the average velocity of the body during the whole
journey?
Q4. A car travels with a uniform velocity of 20 ms-1 for 5 sec. The brakes are
then applied and the car is uniformly retarded. It comes to rest in further 8
sec. by drawing a graph between velocity and time-find.
The distance traveled in first 5 sec.
The distance traveled after the brakes are applied.
Total distance traveled.
Acceleration during the first 5 sec
Acceleration during the last 8 sec.
Q5. A train starts from rest and accelerates uniformly at 100 m min-2 for 10 minutes
Find the velocity acquired by the train. It then maintains a constant velocity for 20
minutes. The brakes are then applied and the train is uniformly retarded. It comes to
rest in 5 minutes. Draw a velocity-time graph and use it to find
0 The retardation in the last 5 minutes
(iske age ka questionupar walli photo main hain​

Answer 1

Answer:Que-1= Question was not clear.

Explanation:

Beacuse question was not clear.