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A truck accelerates up a 10° incline with a crate of 100 kg. Value of static coefficient of friction between the crate and the truck surface is 0.3. The maximum value of acceleration (in m/s2) of the truck such that the crate does not slide down is ______.
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- 1.15
- 1.29
- 1.19
- 1.11
Correct Option: C
∑Falong = ma
FF – mg sin θ = ma
⇒ μ mg cos 10 – mg sin 10 = ma
⇒ a = [0.3 cos 10 – sin 10] 9.81 = 1.19.
