A particle moves a distance x in time t according to equation x = (t + 5)^$$-$$1. The acceleration of particle is proportional to

A bus is moving with a speed of 10 ms^$$-$$1 on a straight road. A scooterist wishes to overtake the bus in 100 s. If the bus is at a distance of 1 km from the scooterist, with what speed should the scooterist chase the bus ?

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S₁ and that covered in the first 20 seconds is S₂, then

The distance travelled by a particle starting from rest and moving with an acceleration $${4 \over 3}$$m s^$$-$$2, in the third second is