A horizontal force of 92.7 N is applied to a 40.5 kg crate on a rough, level surface. If the crate accelerates at 1.13 m/s2, what is the magnitude of the force of kinetic friction (in N) acting on the crate

The value is

Explanation:

From the question we are told that

    The  magnitude of the horizontal force is

     The mass of the crate is  

     The acceleration of the crate is  

Generally the net force acting on the crate is mathematically represented as

Here is force of kinetic friction (in N) acting on the crate

      So  

=>        

the force required to move the cart is divided by three or 33.33 n.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min