Question

a body of mass 5 kg is placed on a rough horizontal surface if coefficient of K.E. and static friction is 0.5 and 0.4 respectively. find the force of friction when external force is applied (1)1.5n
(2)2.5n
(3)3.5n

Answer 1

The correct answer is 3.5 n.

Kinetic energy is directly proportional to the mass of the object as well as square of the velocity. K.E = ½ MV^2.

If the mass has several units of kilograms as well as velocity of meter per second then the kinetic energy has units of kilogram meter squared per second.

Kinetic energy is typically measured in Joules Unit. One joule is equal to 1 kg m^2/s^2.

Answer 2

Answer:

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Explanation:

Hope this helps!