Starting from rest' a particle covered 57 cm distance on the tenth second. Find out the distance in 12 .seconds and velocity of the body at that time.

A particle starts from rest with a uniform acceleration and travels 57 cm in the 10th second. Find out this distance travelled in 12 s and the velocity at that instant.

A particle in motion covers half of a circular path of radius r in time t . Find the average speed and average velocity of the body.

The distance covered by a particle in t seconds is given by x=3+8t-4t^(2) . After 1 second its velocity will be

A particle covers 25 cm and 33 cm in the 5 th and 7 th seconds respectively. What is the velocity of the particle 9 seconds after the initiation of the journey?

If the acceleration of a particle at time t seconds be 1.2t^(2)ft//s^(2) and velocity of the particle at time 2 seconds be 2.2 ft/s, then find its velocity at time 5 seconds.

A partical covers 35 cm, 50 cm, 89 cm distances during the third, seventh and tweIfth seconds respectiveIy of ite motion. Show that the partical is moving with a constant acceleration. Find (i) initial velocity and (ii) distance covered in 8 s by the partical.

A particle moves with uniform acceleration and the distance travelled in t - th second is s_(t) = 3 + 2t . Find the initial velocity of the particle .

All the particles of a body are situated at a distance R from the origin. The distance of the centre of mass of the body from the origin is