1. Two forces P and Q act on an object of mass 20.0 kg with Q...

1. Two forces P and Q act on an object of mass 20.0 kg with Q being the larger of the two forces. When both forces are directed to the left, the magnitude of the acceleration of the object is 0.900 m/s². However, when the force P is directed to the left and the force Q is directed to the right, the object has an acceleration of 0.400 m/s² to the right. Find the magnitudes of the two forces

in newtons.

2. An object of mass 14.0 kg subjected to a non-zero net force moves with an acceleration of 1.6 m/s².

(a) Determine the net force (in N) acting on it. (Enter the magnitude only.)

(b) What acceleration (in m/s²) would a 28.0-kg object have if the same net force is applied to it?

m/s²

3. You work at a garden store for the summer. You lift a bag of fertilizer with a force of 136 N, and it moves upward with an acceleration of 0.803 m/s².

(a)

What is the mass (in kg) of the fertilizer bag?

(b)

How much (in N) does the fertilizer bag weigh?

4. An object of mass 0.61 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 12.7 m/s. Find the magnitude (in N) of the average force acting on the object during the 2.9 ms time interval.

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Expert Solution

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genius_generous answered 1 year ago

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