A stone of weight of 2 kgf is lying on the roof of a building 60 m high. Calculate the amount of stored energy in the stone. [Take 1 kgf=10N]

A stone of weight 10 kg is lying on the top of a house 4m high. What is the amount of stored energy in the stone ? [Take 1 kgf=10N]

How long will a stone take to fall to the ground from the top of a building 80 m high and What will be the velocity of the stone on reaching the ground? (Take g=10 "m s"^(-2) )

A resultant force of 45 kgf is acting on a body whose acceleration is 10 "m/ sec"^2 . Calculate the mass of the body.

A stone of mass of 1 kg is tied to the end of a string 1 m long. It is whirled in a vertical circle. The velocity of the stone at the bottom of the circle is just sufficient to take it to the top of circle without slackening of the string. What is the tension in the string at the top of the circle? (Take, g =10 ms^(-2) )

A stone of mass 0.4 kg is projected vertically upward through a height 10 m. if g=10 ms^(-2) , calculate the potential energy of the stone at the highest point.

Amit weighing 60 kgf climbs up a ladder of height 10 m in 15 minutes. Calculate the increase in his potential energy and the power spent by him. Take 1 kgf = 10 N.

A block of iron of mass 7.5 kg and of dimensions 12 cm x 8 cm x 10 cm is kept on a table top on its base of side 12 cm x 8 cm. Calculate : Pressure exerted on the table top Take 1 kgf= 10 N

A stone is thrown downwards with velocity 10 m/s from the roof of a builng and it reaches the ground with speed 40 m/s. the height of the building would be

A stone of mass 2.0 kg is tied to the end of a string of 2m length. It is whirled in a horizontal circle. If the breaking tension of the string is 400 N, calculate the maximum velocity of the stone.

A piece of stone of mass 15.1 g is first immersed in a liquid and it weighs 10.9 gf. Then on immersing the piece of stone in water, it weighs 9.7 gf. Calculate the weight of the piece of stone in air