Question

1. how does speed affect mass and friction? (1 point)

an increase in speed will not change mass or friction.
an increase in speed will not change the mass but it will increase the friction.
an increase in speed will increase both mass and friction.
an increase in speed will decrease both mass and friction.

Explanation:

Mass is an intrinsic property of an object and is not affected by speed. The formula for friction (static \(F_s=\mu_s N\) and kinetic \(F_k = \mu_k N\)) shows that friction depends on the coefficient of friction (\(\mu\)) and the normal force (\(N = mg\), where \(m\) is mass and \(g\) is acceleration due to gravity). Since neither \(\mu\) nor \(m\) (and thus \(N\)) is affected by speed, friction is also not affected by speed.

Answer:

An increase in speed will not change mass or friction.