1. A particle covers 150 m in 8th second when starts from rest, its acceleration is
2. The distance covered by a particle varies with time as: x=at2-bt3 The time ‘t’ of body, when its acceleration is zero, is
3. The distance time graph of a particle at time t makes an angle 450 with the time axis. After one seconds it makes an angle 600 with the time axis. What is the acceleration of the particle.
4. A particle travelling with uniform acceleration in a straight line, travels 55 m in the 8th second and 85 m in the 13th second of its motion. The initial velocity and uniform acceleration of the particle is
5. A boy completes a semicircle of radius 14 m in 10 seconds. The distance travelled by the boy is
6. A particle travelling with uniform acceleration in a straight line, travels 55 m in the 8th second and 85 m in the 13th second of its motion. The initial velocity and uniform acceleration of the particle is
7. A body moves along a straight line and its displacement at any time t is given by s =(t3-6t2+3t+4)m .The velocity of body, when its acceleration is zero, is
8. If the displacement of a body is proportional to square of time then:
9. If the displacement of a body is proportional to cube of time , then:
10. The displacement x of a particle along a straight line at a time t is given by x=a0+a1t+a2t2 ; The acceleration of the particle is: