A body moves with a velocity of `3m/s` due east and then turns due north to travel with the same velocity.If the total time of travel is `6s` ,the acceleration of the body is

The thermal radiation from a hot body travels with a velocity of

A body is projected vertically up with a velocity of 58.8 m/s. After 3 s if the acceleration due to gravity of earth disappears. The distance travelled and the velocity of the body at the end of next 5 sec is

A body travelling along a straight line traversed one third of the total distance with a velocity 4m/s. The remaining part of the distance was covered with a velocity 1 m/s for half the time and with velocity 3 m/s for the other half of time. The mean velocity averaged over the whole time of motion is :

A body covers first 1/3 part of its journey with a velocity of 2m//s , next 1/3 part with a velocity of (3m)/s and rest of the journey with a velocity 6m//s . The average velocity of the body will be

A body moves from rest with a uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.

A motor car A is travelling with a velocity of 20 m/s in the north-west direction and another motor car B is travelling with a velocity of 15 m/s in the north-east direction. The magnitude of relative velocity of B with respect to A is

A body moving with a constant acceleration travels the distances 3 m and 8 m respectively in 1 s and 2 s. Calculate : (i) the initial velocity, and (ii) the acceleration of body.

Two particles each of the same mass move due north and due east respectively with the same velocity .V.. The magnitude and direction of the velocity of centre of mass is

An observer is travelling in east with a velocity of 2 m/s and observes that wind is blowing in north with a velocity of 2m/s. If observer doubles his velocity then find out the velocity of wind appears to observer ?

A body is projected vertically up with velocity 98 "ms"^(-1) . After 2 s if the acceleration due to gravity of earth disappears, the velocity of the body at the end of next 3 s is