Object A is acted on by only object B. The mass of object A is 20.0 kg and its acceleration is 4.00 m/s2 west. Object B is acted on by two forces, the force of object A on object B and another unknown force.
If mass of object B is 40.0 kg and the acceleration of object B is 3.00 m/s2 west, what is the unknown force?
A)
40 N west
B)
120 N west
C)
80 N east
D)
200 N west
E)
80 N west
Question 2
The intensity of solar radiation near the earth is 1.4 103 W/m2. What force is exerted by solar radiation impinging normally on a 5.0 m2 perfectly reflecting panel of an artificial satellite orbiting the earth?
A)
1.4 104 N
B)
9.4 10-5 N
C)
1.4 10-4 N
D)
2.3 10-5 N
E)
4.7 10-5 N
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