We can find the common velocity of the two bodies from the law of conservation of momentum:
m1v1i+m2v2i=(m1+m2)vcom,here, m1=2kg is the mass of the body, m2=0.5kg is the mass of the stationary object, v1i=6m/s is the initial velocity of the body, v2i=0 is the initial velocity of the object, vcom is the common velocity of the system of two bodies.
Then, from this equation we can calculate the common velocity of the system of two bodies:
vcom=(m1+m2)m1v1i=(2kg+0.5kg)2kg⋅6sm=4.8sm.Answer:
vcom=4.8sm.
Comments
Very helpful
Leave a comment