Question

5 Numericals
equation of
Motion​

Answer 1

1. an athlete completes one round of circular track of diameter 200m in 40 seconds. what will be the distance covered and the displacement at the end of 2 minute 20 second
2. starting from a stationary position Rahul paddles his bicycle to attain a velocity of 6 metre per second in 30 second.then he applied brakes such that the velocity of the bicycle comes down to 4 metre per second in the next 5 seconds calculate the acceleration of the bicycle in both the cases.
3. a train is travelling at a speed of 90 km per hour.brakes are applied so as to produce a uniform acceleration of -0.5 metre second square. find how far the train will go before it is brought to rest.
4. a bus starting from rest moves with a uniform acceleration of 0.5 metre second square for 2 minute. find (a) the speed, (b) the distance travelled.
5. a stone is thrown in a vertically upward direction with a velocity of 5 metre per second. if the acceleration of the stone during its motion is 10 metre second square h in the downwards direction what will be the height attained by the stone and how much time will it take to reach there.