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5. A student pushes a loaded sled whose mass m is 100 kg for a distance d of 5 m over a frictionless surface. He exerts a constant horizontal force F of 100 N. If the sled starts from rest, what is its acceleration? 20 m/s? 1 m/s? A В 100 m/s2 C 5 m/s?

5. A student pushes a loaded sled whose mass m is 100 kg for a distance d of 5 m over a frictionless surface. He exerts a constant horizontal force F of 100 N. If the sled starts from rest, what is its acceleration? 20 m/s? 1 m/s? A В 100 m/s2 C 5 m/s?

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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5. A student pushes a loaded sled whose mass m is 100 kg for a distance d of 5 m over a frictionless surface. He exerts a constant horizontal force F of 100 N. If the sled starts from rest, what is its acceleration?

Homework 4. A 90 kg man stands in an elevator that has a downward acceleration of 1.4 m/s². The force exerted by him on the floor is about: A Zero 90 N C 880 N 760 N 5. A student pushes a loaded sled whose mass m is 100 kg for a distance d of 5 m over a frictionless surface. He exerts a constant horizontal force F of 100 N. If the sled starts from rest, what is its acceleration? 20 m/s2 1 m/s2 A 100 m/s2 C 5 m/s2 6. A crate whose mass m is 250 kg rests on the bed of a truck that is moving at a speed v, of 100 m/s. The driver applies the brakes and slows to a speed v of 50 m/s in 10 s. What is the acceleration ? +5 m/s² 50 m/s2 -5 m/s? 100 m/s² C
Transcribed Image Text:Homework 4. A 90 kg man stands in an elevator that has a downward acceleration of 1.4 m/s². The force exerted by him on the floor is about: A Zero 90 N C 880 N 760 N 5. A student pushes a loaded sled whose mass m is 100 kg for a distance d of 5 m over a frictionless surface. He exerts a constant horizontal force F of 100 N. If the sled starts from rest, what is its acceleration? 20 m/s2 1 m/s2 A 100 m/s2 C 5 m/s2 6. A crate whose mass m is 250 kg rests on the bed of a truck that is moving at a speed v, of 100 m/s. The driver applies the brakes and slows to a speed v of 50 m/s in 10 s. What is the acceleration ? +5 m/s² 50 m/s2 -5 m/s? 100 m/s² C
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