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Physics 30 - Week 1 - Essential Skills

Last updated over 6 years ago

5 questions

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Question 1

1.

An object has a mass of 45.0 kg. It is pulled along a horizontal surface by a rope that makes an angle of 32.0˚ with the horizontal. If the force of friction is 50.0 N and the force applied is 95.0 N, determine the magnitude of the acceleration of the object in m/s2

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Question 2

2.

A net force of 6.6 N south acts on a 9.1 kg object. If this object accelerates uniformly from rest to a velocity of
3.0 m/s south. How far, in metres, did the object travel while accelerating?

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Question 3

3.

Use the following information to answer the next question.
Calculate the velocity, in m/s, of the card at Point B assuming the cart begins from rest at Point A.

Question 4

4.

1) Determine the average net force exerted on a 9.0 x 10-3 kg bullet by a gun accelerating from rest to a speed of 1.0 x 103 m/s through a displacement of 17.3 cm. The average net force is a.b x 10c N. Record the value of abc

Question 5

5.

A 1.7 kg object is swung from the end of a 0.60 m string in a vertical circle. If the time of one revolution is 1.1 s, what is the tension, in N, in the string at the bottom of the circle? (Assume uniform speed)