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Perfectly Elastic Collision

19. A ameta b...

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19. A ameta block Of mass 10kg is dragged on a rough horizontal surface with constant speed of 5 m/s if the coefficient of kinetic friction between the block and the road is 0.4 then the rate of generation of heat in SI unit is nearly

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Q. A metal block of mass

100 k g

is dragged on a rough horizontal surface with a constant speed of

5 m s^{- 1}

. If the coefficient of kinetic friction between the block and the road is

0.4

. Find the rate of generation of heat in S.I. unit.

Q. A block of mass 5 kg is on a rough horizontal surface and is at rest. Now a force of 24 N is imparted to it with negligible impulse. If the coefficient of kinetic friction is 0.4 and g = 9.8

m / s^{2}

, then the acceleration of the block is

Q. Block A of mass 2 kg is placed over a block B of mass 8 kg. The combination is placed on a rough horizontal surface. If g = 10

m s^{- 2}

, coefficient of friction between B and floor = 0.5, coefficient of friction between A and B = 0.4 and a horizontal force of 10 N is applied on 8 kg block, then the force of friction between A and B is

Q. A block of mass

5 kg

is on a rough horizontal surface at rest. Now a force(

F

24 N

is imparted to it with negligible impulse. If the coefficient of kinetic friction is

0.4

g = 9.8 {m/s}^{2}

, then the acceleration of the block is

Q. A person is moving a block of mass = 1 kg with constant speed v = 1 m/s .Block is placed on a rough horizontal surface. The coefficient of friction between block and surface is

μ

= 0.5 then find out the power delivered by a man.

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