a 4kg block moving with a velocity 100 m/s collides with 16kg block moving with a velocity of 4m/s in the same direction. if they coalesce on impact then find the velocity of blocks and the loss of energy resulting from the impact.
(a) 5.2 m/s and 58J
(b) 10.4 m/s and 29 J
(c) 2.5 m/s and 60 J
(d) 5.2 m/s and 29 J
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Bro ....your options doesn't match. but let me give u an idea. it is perfect inelastic collision. that is when two objects collide they stick together and move with a common velocity. that is the two bodies is now considered to be a single body and the common velocity is given by
v=(m1u1+m2u2)/m1+m2
where m1 -first object and u1 is it's respective initial velocity
m2-second object and u2 is it's respective velocity .just substitute the values from the data and get your answer.
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