A block with a mass of 3.00 kg starts from rest at the top of a 31.5° incline and slides 2.00 m down the incline in 1.45 s. (a) What is the magnitude of the acceleration of the block (in m/s2)? m/s2 (b) What is the frictional force (in N) acting on the block? (Enter the magnitude.) N (c) What is the coefficient of kinetic friction between the block and the incline? (d) What is the speed of the block (in m/s) after it has slid 2.00 m? m/s

A block with a mass of 3.00 kg starts from rest at the top of a 31.5° incline and slides 2.00 m down the incline in 1.45 s. (a) What is the magnitude of the acceleration of the block (in m/s2)? m/s2 (b) What is the frictional force (in N) acting on the block? (Enter the magnitude.) N (c) What is the coefficient of kinetic friction between the block and the incline? (d) What is the speed of the block (in m/s) after it has slid 2.00 m? m/s

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 74PQ: Starting from rest, a rectangular toy block with mass 300 g slides in 1.30 s all the way across a...

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

A block with a mass of 3.00 kg starts from rest at the top of a 31.5° incline and slides 2.00 m down the incline in 1.45 s.

(a)

What is the magnitude of the acceleration of the block (in m/s²)?

m/s²

(b)

What is the frictional force (in N) acting on the block? (Enter the magnitude.)

(c)

What is the coefficient of kinetic friction between the block and the incline?

(d)

What is the speed of the block (in m/s) after it has slid 2.00 m?

m/s

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