Question

a force of 150 Newton produces an acceleration of 20 metre per second in a body of mass M calculate the force required to produce an acceleration of 50 metre per seconds in it​

Answer 1

Answer:

The force acting on the body - the frictional force = net force providing the given acc.

therefore,

150 (given force) - (mu - coeff. of friction) x N = m x a

150 - (mu) x N = 2m.

(mu) x N = 150 - 2m -----(1)

also,

200 - (mu) x N = m x a

putting eqn (1) in this eqn we get ,

200 - 150 + 2m = 3m

m = 50 kgs.

putting the value of m in eqn (1) we get ,

(mu) x m x g = 150 - 100

(mu) x 500 = 50.

therefore , (mu) = 0.1

hece the mass of the body is 50kgs and the coefficient of kinetic friction is 0.1.