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NUME O A 70 kg man runs up a long flight of stairs in 4 s. The vertical height of the stair is 4.5m. Calculate his power. (P = 7.7x10 Watts) %3D O A body of mass 2.0 kg is dropped from a rest position 5m above the ground. What is its velocity at height of 3.0 m above the ground ? (v = 6.3 m s') OA man pulls a trolley through a distance of 50m by applying a force of 100N which makes an angle of 30° with horizontal. Calculate the work done by the man. (4330 J)

NUME O A 70 kg man runs up a long flight of stairs in 4 s. The vertical height of the stair is 4.5m. Calculate his power. (P = 7.7x10 Watts) %3D O A body of mass 2.0 kg is dropped from a rest position 5m above the ground. What is its velocity at height of 3.0 m above the ground ? (v = 6.3 m s') OA man pulls a trolley through a distance of 50m by applying a force of 100N which makes an angle of 30° with horizontal. Calculate the work done by the man. (4330 J)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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height of the stair is 4.5m. Calculate his power. O A 70 kg man runs up a long flight of stairs in 4 s. The vertical NUMERICAL QUESTIONS 70 kg man runs up a long flight of stairs in 4 s. The vertical beight of the stair is 4.5m. Calculate his power. (P = 7.7x10 Watts) O A body of mass 2.0 kg is dropped from a rest position 5m above the ground. What is its velocity at height of 3.0 m above the ground ? (v = 6.3 m s') A man pulls a trolley through a distance of 50m by applying a force of 100N which makes an angle of 30° with horizontal. Calculate the work done by the man. (4330 J)
Transcribed Image Text:height of the stair is 4.5m. Calculate his power. O A 70 kg man runs up a long flight of stairs in 4 s. The vertical NUMERICAL QUESTIONS 70 kg man runs up a long flight of stairs in 4 s. The vertical beight of the stair is 4.5m. Calculate his power. (P = 7.7x10 Watts) O A body of mass 2.0 kg is dropped from a rest position 5m above the ground. What is its velocity at height of 3.0 m above the ground ? (v = 6.3 m s') A man pulls a trolley through a distance of 50m by applying a force of 100N which makes an angle of 30° with horizontal. Calculate the work done by the man. (4330 J)
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