A block of mass 22 kg is sliding along the ice at constant speed 5.0 m/s. Just ahead of it is a block of mass 29 kg sliding in the
same direction at constant speed 4.6 m/s. When the two blocks collide, the 29-kg block travels at a new speed of 7.2 m/s. What is
the new speed of the 22-kg block?

The new speed of 22 kg block is 1.57 m/s

Explanation:

Given-

Mass, = 22 kg

speed,  = 5 m/s

= 29 kg

= 4.6 m/s

New speed of , = 7.2 m/s

New speed of , = ?

This is the case of elastic collision.

So,

X  + X = X + X

22 X 5 + 29 X 4.6 = 22 X + 29 X 7.2

22 + 208.8 = 243.4

22 = 34.6

= 1.57 m/s

Therefore, the new speed of 22 kg block is 1.57 m/s

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

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explanation:

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