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A 0.20-kg puck slides across a frictionless floor with a speed of 10 m/s. The puck strikes a wall and bounces off with a speed of 10 m/s in the opposite direction. (a) The magnitude of the impulse on the puck is (A) 0 kg ∙ m/s (B) 1 kg ∙ m/s. (C) 2 kg ∙ m/s. (D) 4 kg ∙m/s. (b) The net work done on the puck is (A) – 20 J. (B) – 10 J. (C) 0 J. (D) 20 J.

A 0.20-kg puck slides across a frictionless floor with a speed of 10 m/s. The puck strikes a wall and bounces off with a speed of 10 m/s in the opposite direction.
(a) The magnitude of the impulse on the puck is
(A) 0 kg ∙ m/s                   (B) 1 kg ∙ m/s.
(C) 2 kg ∙ m/s.                   (D) 4 kg ∙m/s.
(b) The net work done on the puck is
(A) – 20 J.                         (B) – 10 J.
(C) 0 J.                              (D) 20 J.

Grade:upto college level

1 Answers

Deepak Patra
askIITians Faculty 471 Points
8 years ago
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