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Nov 2017 p41 q1
3994
A block of mass 3 kg is initially at rest on a smooth horizontal floor. A force of 12 N, acting at an angle of 25° above the horizontal, is applied to the block. Find the distance travelled by the block in the first 5 seconds of its motion.
Solution
First, resolve the force into horizontal and vertical components. The horizontal component of the force is given by:
\(F_x = 12 \cos 25^{\circ}\)
Using Newton's second law, \(F = ma\), where \(m = 3 \text{ kg}\), we have: