A 2\text{kg} block sits on a 20^\circ incline with \mus = 0.50. Will the block slide on its own? (Use g \approx 10\text{m/s}^2.)

No — static friction can hold it. \tan 20^\circ \approx 0.36 < \mus = 0.50, so static friction can support the block. (Slipping requires \tan\theta \mus.)

Cannot be determined without more information.

No — static friction can hold it.

Kinetic and Static Friction

AP Physics 1· difficulty 2/5

2~\text{kg}

A
$Cannot be determined without more information.$
B
$No — static friction can hold it.$
check_circle
C
$Only if pushed.$
D
$a > 0$

Explanation

\tan 20^\circ \approx 0.36 < \mu_s = 0.50

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forward Predict my AP score

Related questions