Motion in A Str...

A plane has a takeoff speed of $$88.3 m/s$$ and requires $$1365 m$$ to reach that speed. Determine the time required to reach this speed.

What is the total height reached by the stone? (in m)

It was once recorded that a Jaguar left skid marks that were $$290 m$$ in length. Assuming that the Jaguar skidded to a stop with a constant acceleration of $$-3.90 m/s^2$$, determine the speed of the Jaguar before it began to skid.

An aeroplane is flying horizontally with a velocity of $$600 km/h$$ and at a height of $$1960 m$$. When it is vertically at a point $$A$$ on the ground a bomb is released from it. The bomb strikes the ground at point $$B$$. The distance $$AB$$ is:

The K.E. (K) of a particle moving along a circle of radius $$R$$ depends on the distance covered $$s$$ as $$K = a s^2$$. The force acting on particle is

A car accelerates from rest at constant rate of $$2 m/s^2$$  for some time. Then its retards at a constant rate of $$4 m/s^2$$ and comes to rest. if it remains in motion for $$3$$ seconds, then the maximum speed attained by the car is:-

 A particle is projected vertically upwards and it attains maximum height $$H$$. If the ratio of times to attain height $$h(h < H)$$ is $$1/3$$, then $$h$$ equals

Maximum height. (in m)

From the top of a tower, a stone is thrown up. It reaches the ground in $$5$$ $$s$$. A second stone is thrown down with the same speed and reaches the ground in $$1$$ $$s$$. A third stone is released from rest and reaches the ground in

Two particles P and Q start from rest and move for equal time on a straight line. Particle P has an acceleration of$$X m/s^2$$ for the first half of the total time and $$2x m/s^2$$ for the second half. Particle Q has an acceleration of $$2X m/s^2$$ for the first half of the total time and $$X m/s^2$$ for the second half. Which particle has covered larger distance?