Answer:
v2=6400m/s
Explanation:
Consider the elastic head-on collision between a sledge hammer with 2000 g mass and a golf ball with a 5 g mass. The initial velocity of the sledge hammer is 16 m/s, and the golf ball is initially at rest. the concluding part of this question could be:
this is an elastic collision
we know from the principles of linear momentum that the total momentum before collision must be equal to total linear momentum after collision
momentum is the product of mass and its velocity
m1u1+m2u2=m1v1+m2v2
m1=2000g mass of the sledge hammer
u1=16m/s initial velocity of the sledge hammer
m2=5g mass of the golf ball
u2=0 velocity of the golf ball
v1=0m/s final velocity of the sledge hammer
v2=? final velocity of the golf ball
2000*16+5*0=2000*0+5v2
v2=2000*16/5
v2=400*16
v2=6400 m/s
