Homework Help: physics

Posted by sherri on Monday, April 5, 2010 at 2:13pm.

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, Monday, April 5, 2010 at 2:39pm
Impulse= change in momentum
force*time= mass*changevelocity

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