Q

A uniform 2 m chain of mass 4 kg lies on a table with 60 cm hanging over its edge. Find the work needed to pull the whole chain onto the table.

RRB Group D 07/12/2018 / Shift-I 2018
✓ Answer: C 3.6 J
Hanging mass = (4/2) × 0.6 = 1.2 kg. Its centre rises 0.3 m. W = 1.2 × 10 × 0.3 = 3.6 J.
← Previous Question Next Question →

📚 Related Questions — Mechanics

1 Which equation represents the velocity-time relation? 2 A vehicle of mass M travels at velocity V. If its kinetic… 3 A trolley is pulled along a straight track by a constant force… 4 Which of the following best describes the motion of a car traveling… 5 A bus starts from rest and travels 200 m downhill in 10… 6 Which statement is correct regarding negative work?