Question #2a2ef Physics Momentum and Collisions Momentum and Impulse 1 Answer Καδήρ Κ. Jul 21, 2017 #K=4kJ# Explanation: #F=ma =>a=F/m=>a=20/5=4m/s^2# so the velocity is : #v=at=4*10=40m/s# The kinetic energy is then : #K=1/2mv^2=1/2*5*40*40=5*20*40=4000J=4kJ# Answer link Related questions Question #ce067 Question #13b3d If the velocity of an object doubles, does its momentum double? How can an impulse exerted on something be increased? How is impulse related to momentum? What are the units for impulse? Could an elephant have the same momentum as a golf ball? Can an object that is not moving have momentum? Is momentum conserved in an inelastic collision? How much momentum does a 1000 kg car traveling at 35 m/s have? See all questions in Momentum and Impulse Impact of this question 1627 views around the world You can reuse this answer Creative Commons License