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A 106-kg object is initially moving in a straight line with a speed of 51. 3 m/s. (a) If it is brought to a stop with a deceleration of 1.97 m/s 2 , what force is required, what distance does the object travel, and how much work is done by the force? (b) Answer the same questions if the object’s deceleration is 4.82 m/s 2 .

A 106-kg object is initially moving in a straight line with a speed of 51. 3 m/s. (a) If it is brought to a stop with a deceleration of 1.97 m/s2, what force is required, what distance does the object travel, and how much work is done by the force? (b) Answer the same questions if the object’s deceleration is 4.82 m/s2.

Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
8 years ago
232-796_1.PNG
232-1993_1.PNG
W = Fs
= (511 N) (273 m)
= (1.40×105 N.m) (1 J/1 N.m)
= 1.40×105 J
From the above observation we conclude that, the work W is done by the force would be 1.40×105 J.

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