A parallel plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of 30.0 cm/s. It takes a force 1.20 N applied to the plate to sustain this speed. What is the viscosity of the oil?
A)
6.00 kg/(ms)
B)
20.0 kg/(ms)
C)
60.0 kg/(ms)
D)
0.200 kg/(ms)
E)
200 kg/(ms)
Question 2
A 1000-kg car is traveling at 20.0 m/s toward the north. During a collision the car receives an impulse of 1.00 104 Ns toward the south. What is the velocity of the car after the impulse is applied to the car?
A)
0.00 m/s
B)
20.0 m/s north
C)
30.0 m/s north
D)
-10.0 m/s south
E)
10.0 m/s north
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