Question
The figure shows a train of four blocks being pulled across a frictionless floor by force . Cord 1 Cord 2 Cord 3 10kg ----------------
The figure shows a train of four blocks being pulled across a frictionless floor by force .
Cord 1 Cord 2 Cord 3
10kg ---------------- 3kg ---------------- 5kg -------------- 2kg ------
(a) What total mass is accelerated to the right by force ?
- 2kg
- 7kg
- 10kg
- 20kg
(b) What total mass is accelerated to the right by cord 3?
- 2kg
- 5kg
- 8kg
- 18kg
(c) What total mass is accelerated to the right by cord 1?
- 3kg
- 8kg
- 10kg
- 20kg
(d) Rank the blocks according to their accelerations, greatest first.
- (10 kg block) = (3 kg block) = (5 kg block) = (2 kg block)
- (10 kg block) > (3 kg block) > (5 kg block) > (2 kg block)
- (2 kg block) > (5 kg block) > (3 kg block) > (10 kg block)
- (10 kg block) > (5 kg block) > (3 kg block) > (2 kg block)
- (2 kg block) > (3 kg block) > (5 kg block) > (10 kg block)
(e) Rank the cords according to their tension, greatest first.
- (cord 3) > (cord 2) > (cord 1)
- (cord 1) > (cord 2) > (cord 3)
- (cord 1) = (cord 2) = (cord 3)
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Introductory Classical Mechanics
Authors: David Morin
1st edition
9780511808951, 521876222, 978-0521876223
