A uniform wooden plank of mass 150 kg and length 8 m is floating on still water with a man of 50 kg at one end of it. The man walks to the other end of the plank and stops. Then the distance covered by the plank is

Question

A uniform wooden plank of mass 150 kg and length 8 m is floating on still water with a man of 50 kg at one end of it. The man walks to the other end of the plank and stops. Then the distance covered by the plank is, 1 m, 4 m, 2 m, Zero

MARKS App · Accepted Answer

Since there is no external force on the system m 1 Δ x 1 = m 2 Δ x 2 50 8 - d = 150 × d 8 - d = 3 d ⇒ d = 2 m

Search any question & find its solution

Looking for more such questions to practice?