In coming to a stop car leaves skid marks 78 long on the, Ask an Expert

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Q1. In coming to a stop, car leaves skid marks 78 long on the highway. Assuming a deceleration of 7.1 estimate the speed of the car just before braking.

Q2. Two ants race across a table 71cm long. One travels at 4.71cm/s and the other at 3cm/s.

When the first one crosses the finish line, how far behind is second one?

Q3. A truck covers 40.0 m in 8.30 s while smoothly slowing down to a final velocity of 1.60 m/s. (a) Find out the trucks original speed.

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Category:- Physics
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