(Solved): The design of a camshaft-drive system of a four-cylinder automobile engine is shown. As the engine ...

The design of a camshaft-drive system of a four-cylinder automobile engine is shown. As the engine is revved up, the belt speed \( v \) changes uniformly from \( 3.9 \mathrm{~m} / \mathrm{s} \) to \( 5.5 \mathrm{~m} / \mathrm{s} \) over a 1.1-second interval. Calculate the magnitudes of the accelerations of points \( P_{1} \) and \( P_{2} \) halfway through this time interval. Answers: