The accompanying figure shows a frictionless channel in the shape of a segment o
ID: 1609099 • Letter: T
Question
The accompanying figure shows a frictionless channel in the shape of a segment of a circle with center at "O" The channel has been anchored to a frictionless horizontal table top You are looking down at the table. Forces exerted by the air are negligible. A ball is shot at high speed into the channel at "p" and exits "r". Consider the following distinct forces: A downward force of gravity A force exerted by the channel pointing from q to O. A force in the direction of motion. A force pointing from O to q which of the above forces is (are) acting on the ball when it is within frictionless channel at position the "q"? 1 only 1 and 2. 1 and 3 1, 3, and 4. Which path in the figure at right would the ball most closely follow after it exits the channel at "r" and moves across the frictionless table top?Explanation / Answer
Q5. Given that a ball is shot at high speed into the channel. As ball is having mass, obviously it will experience a downward force due to gravity. hence the force as explained by 1. will always act. As the ball is travelling inside the channel and it is being forced to move in a circular path ( because in the absence of channel it would have travelled in a straight line) and the motion in a circular path is possible if a particle experiences a force perpendicular to its motion. So force as explaned by 2 will also act. so correct option is B.
Q6. The ball would closely follow path B as it is tangential to the leaving point r.
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