Question

In: Physics

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

P

&

Q

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.)

N

(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?

kg

(b)

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

N

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.

Expert Solution

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genius_generous answered 2 years ago

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