Posted by sherri on .
A 20kg mass moving at a speed of 3m/s is stopped by a constant force of 15N.
Show that the stopping time required is 4s.

physics 
bobpursley,
Impulse= change in momentum
force*time= mass*changevelocity
Posted by sherri on .
A 20kg mass moving at a speed of 3m/s is stopped by a constant force of 15N.
Show that the stopping time required is 4s.
Impulse= change in momentum
force*time= mass*changevelocity