Author Question: A flat horizontal plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of ... (Read 66 times)

anshika · **on:** Jul 29, 2018

A flat horizontal plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of 30.0 cm/s. The oil is resting on a fixed horizontal surface. 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/m s
B) 20.0 kg/m s
C) 60.0 kg/m s
D) 0.200 kg/m s
E) 200 kg/m s

Question 2

A cart has an initial velocity of 5.0 m/s to the right and a constant acceleration of 2.0 m/s2 to the right. What is the cart's displacement during the first 6.0 s of this motion?

A) 10 m
B) 55 m
C) 66 m
D) 80 m