Question

A 112 kg man is skiing across level ground at a speed of 8.3 m/s when he comes to the small slope 1.4 m higher than ground level shown in the following figure. -8.0 m- 11.4 m (a) If the skier coasts up the hill, what is his speed (in m/s) when he reaches the top plateau? Assume friction between the snow and skis is negligible. 4.55 \times m/s (b) What is his speed (in m/s) when he reaches the upper level if a 65 N frictional force acts on the skis? 4.01 \times m/s

          A 112 kg man is skiing across level ground at a speed of 8.3 m/s when he comes to the small slope 1.4 m higher than ground level shown in the following figure.
-8.0 m-
11.4 m
(a) If the skier coasts up the hill, what is his speed (in m/s) when he reaches the top plateau? Assume friction between the snow and skis is negligible.
4.55
\times m/s
(b) What is his speed (in m/s) when he reaches the upper level if a 65 N frictional force acts on the skis?
4.01
\times m/s

A 112 kg man is skiing across level ground at a speed of 8.3 m/s when he comes to the small slope 1.4 m higher than ground level shown in the following figure.
-8.0 m-
11.4 m
(a) If the skier coasts up the hill, what is his speed (in m/s) when he reaches the top plateau? Assume friction between the snow and skis is negligible.
4.55
×m/s
(b) What is his speed (in m/s) when he reaches the upper level if a 65 N frictional force acts on the skis?
4.01
×m/s

Added by Michelle P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Ivan Kochetkov

11/14/2022

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This principle states that the total mechanical energy of a system remains constant if no external forces are acting on it. Show more…

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Hi can someone help please 4Y (a) If the skier coasts up the hill, what is his speed (in m/s) when he reaches the top plateau? Assume friction between the snow and skis is negligible 4.55 xm/s (b) What is his speed (in m/s) when he reaches the upper level if a 65 N frictional force acts on the skis? 4.01 xm/s