Question 14
Give reasons for the answers to each of the following questions: a) Can a normal force be horizontal? b)
Can a normal force be directed vertically downward? c) Consider a tennis ball in contact with a
stationary floor and with nothing else. Can the normal force be different in magnitude from the
gravitational force exerted on the ball? d) Can the force exerted by the floor on the ball be different in
magnitude from the force the ball exerts on the floor?
1 answer
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