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Mechanics — Question 88

Original QCE Vault practice · 5 marks

Q88 · Practice questionComplex familiar5 marks

QUESTION 88 (5 marks)

A 4 kg4\ \mathrm{kg} block is on a smooth plane inclined at 25∘25^\circ to the horizontal. A 30 N30\ \mathrm N force acts at 15∘15^\circ above the plane in the uphill direction. Take g=9.8 m s−2g=9.8\ \mathrm{m\,s^{-2}}.
Supporting diagram for question 88
a)
Determine the acceleration of the block along the plane.
[3 marks]
b)
If the block starts from rest, determine the distance travelled along the plane in the first 3 s.
[2 marks]
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