The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On another trial, the initial speed of the truck is half as large. What now will be the truck’s skidding distance? (a) $2 d$ (b) $\sqrt{2} d$ (c) d (d) d/2 (e) d/4

Question

The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On another trial, the initial speed of the truck is half as large. What now will be the truck’s skidding distance? (a) $2 d$ (b) $\sqrt{2} d$ (c) d (d) d/2 (e) d/4

Accepted Answer

The stopping distance of the truck for half the initial speed is $\frac{d}{4}$ , and Option (e) is correct.

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Short Answer

The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On another trial, the initial speed of the truck is half as large. What now will be the truck’s skidding distance? (a) $2 d$ (b) $\sqrt{2} d$ (c) d (d) d/2 (e) d/4

Step by Step Solution

Step 1: Identification of given data

Step 2: Determine the stopping distance in the second case

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Physics For Scientists & Engineers

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Short Answer

The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On another trial, the initial speed of the truck is half as large. What now will be the truck’s skidding distance? (a) 2d (b) 2d (c) d (d) d/2 (e) d/4

Step by Step Solution

Step 1: Identification of given data

Step 2: Determine the stopping distance in the second case

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The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On another trial, the initial speed of the truck is half as large. What now will be the truck’s skidding distance? (a) $2 d$ (b) $\sqrt{2} d$ (c) d (d) d/2 (e) d/4