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PHYV101: Physics 1A for Engineers (2025)
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A rock attached to a string swings in a vertical circle. Which free body diagram could correctly describe the force(s) on the rock when it is at the lowest point?
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The vector sum of three co-planar forces
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A 50-kg child riding a Ferris wheel (radius = 10 m) travels in a vertical circle. The wheel completes one revolution every 10 s. What is the magnitude of the force on the child by the seat at the highest point on the circular path?
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In the figure shown, the coefficient of kinetic friction between the block and the incline is 0.29. What is the magnitude of the acceleration of the suspended block as it falls? Disregard any pulley mass or friction in the pulley.
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Exhibit 5-2 A 4.00 kg block is suspended from the roof of an elevator. A 2.00 kg block is suspended from the 4.00 kg block. The tensions in strings 1 and 2 are labeled T Use this exhibit to answer the following question(s).
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The coefficient of kinetic friction between the surface and the larger block is 0.25, and the coefficient of kinetic friction between the surface and the smaller block is 0.40. If F = 22N and M = 1.0 kg in the figure, what is the magnitude of the acceleration of either block?
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If F = 5.0 N, what is the magnitude of the force exerted by block 2 on block 1?
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A 1.5-kg object has a velocity of 5
m/s at t = 0. It is accelerated at a constant rate for five seconds after which it has a velocity of (6
+ 12
) m/s. What is the magnitude of the resultant force acting on the object during this time interval?
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A 2.0-kg block slides on a rough horizontal surface. A force (magnitude P = 4.0 N) acting parallel to the surface is applied to the block. The magnitude of the block's acceleration is 1.2 m/s2. If P is increased to 5.0 N, determine the magnitude of the block's acceleration.
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A book is resting on a table. How many forces would be in the free-body diagram of the book?
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