A steel ball of mass 0.1 kg falls freely

Asked by admin @ 16/08/2021 in Physics viewed by 318 People

A steel ball of mass 0.1 kg falls freely from a height of 10m and bounces back to a height of 5.4m from ground. If the dissipated energy in this process is absorbed by the ball, the rise in temperature is (specific heat of steel = 460 j / kg-c )

Answered by admin @ 16/08/2021

A steel wire of length 1m mass 0.1 kg

Asked by admin @ 13/08/2021 in Physics viewed by 293 persons

A steel wire of length 1m, mass 0.1kg and uniform cross-sectional area 10^(-6)m^(2) is rigidly fixed at both ends. The temperature of the wire is lowered by 20^(@)C. If transverse …

Two steel balls a and b of mass 10kg

Asked by admin @ 23/08/2021 in Physics viewed by 321 persons

Two steel balls A and B of mass 10kg and 10g roll towards each other with 5m/s and 1m/s on a smooth floor. After collision with what speed B moves …

A ball falls freely from a height of 45m

Asked by admin @ 20/08/2021 in Physics viewed by 422 persons

A ball falls freely from a height of 45 m. When the ball is at a<br />height of 25 mit explodes into two equal pieces. One of them<br />moves horizontally …

A spherical ball of mass 20 kg is stationary

Asked by admin @ 17/08/2021 in Physics viewed by 306 persons

A spherical ball of mass 20kg is stationary at the top of a hill of height 100m.It rolls down a smooth surface to the ground and then climbs up another …

An object of mass 5 kg falls from rest

Asked by admin @ 17/08/2021 in Physics viewed by 287 persons

An objecte of mass 5 kg falls from rest through a vertical distance of 20 m and reaches velocity 10 m/s. How much work is done by push of air …

A man throws a ball of mass 0.5 kg

Asked by admin @ 20/08/2021 in Physics viewed by 284 persons

a man throws a ball of mass 0.5kg vertically upward with a velocity of 10m/s. what will be its initial velocity momentum? what would be its momentum at the highest …

A ball of mass 1 kg hangs in equilibrium

Asked by admin @ 17/08/2021 in Physics viewed by 346 persons

A ball of mass 1 kg hangs in equilirbium from two strings OA and OB as shown in figure.What are the tensions in strings OA and OB ?(Take …

A block of mass 0.1 kg is held against

Asked by admin @ 16/08/2021 in Physics viewed by 276 persons

a block of mass 0.1 kg is held against a well by applying a horizontal force of 5 N on the block if the cofficient friction b/w the block and …

When a body falls freely towards the earth

Asked by admin @ 25/08/2021 in Physics viewed by 295 persons

The total energy when a body falls freely towards earth remains constant. True or false?

A solid sphere of mass 2 kg is resting

Asked by admin @ 23/08/2021 in Physics viewed by 309 persons

A solid sphere of mass 2 kg is resting inside a cube as shown in the figure. The cube is moving with a velocity v = . Here t is …

A block of mass 10 kg moving with acceleration

Asked by admin @ 23/08/2021 in Physics viewed by 469 persons

43. A block of mass 10 kg, moving with acceleration 2 m/s2 on horizontal rough surface is shown in figure → a= 2 m/s> F= 40 NThe value …

Conservation of mechanical energy of a freely falling body

Asked by admin @ 23/08/2021 in Science viewed by 331 persons

Prove that the total mechanical energy of a freely falling body is conserved.

A block of mass root 2 kg is released

Asked by admin @ 23/08/2021 in Physics viewed by 332 persons

A block of mass root 2 kg is released from the top of an inclined smooth surface as shown in fig. if spring constant of spring is 100n/m and block …

A bullet of mass 0.01 kg is fired horizontally

Asked by admin @ 23/08/2021 in Physics viewed by 341 persons

A bullet of mass 0.01 kg is fired horizontally into 4kg wooden block at rest on a horizontal surface. the coefficient of kinetic friction between the block and the surface …