1st Midterm Review

1st Midterm Review - moving together? What is the...

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Question 1: a A truck carrying a heavy mass M=100 kg tied with two ropes to the walls of its cabin to prevent sliding. If the truck was moving with an acceleration a=1m/s 2 to the left as shown in the figure, if only one of the ropes was pulling on mass to hold it in place, which one would it be in this case? Find the tension? T 1 T 2
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An object starts moving at t=0s with an acceleration . Its initial velocity is . Find its displacement in the direction of y when its displacement in the direction of x is 12m . j i a ˆ 10 ˆ 4 + = r j i v ˆ 2 ˆ 10 0 + = Question 2: r
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Question 3: M m F M=10kg m=2kg F=24N There is no friction between M and the ground. What is the acceleration of the two masses if they are
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Unformatted text preview: moving together? What is the frictional force between M and m ? What is the minimal s between the two masses? Question 4: A person is observing the motion of a ball on a flat surface and measuring its position in time. His measurement shows that . A second person is standing at a different location 10m east and 5m north of the first person. What will the second person measure if he is to measure the position of the same ball? What will be the velocity of the ball relatively to each of the two observers? A B j t i t r 2 2 1 2 + = r...
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This note was uploaded on 04/06/2009 for the course PHYS 0174 taught by Professor Kohler during the Spring '08 term at Pittsburgh.

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1st Midterm Review - moving together? What is the...

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