Two bodies X and Y of mass 5.0 kg and 7.5 kg respectively are connected by a light in extensible string if x is placed on a rough surface of coefficient of friction 0.5, calculate the magnitude of the 1 normal friction
2 frictional forces between x and the surface
3 tension on the string​

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped