A motorist travelling at 17ms encounters a deer in the road, Ask an Expert

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Q1. A car is driven 150 km west and then 90 km southwest. What is the displacement of car from the point of origin (magnitude and direction)?

Q2. A motorist travelling at 17m/s encounters a deer in the road 49m ahead. If the maximum acceleration the vehicle's brakes are capable of is -7 m/s2. If his or her reaction time is 1.9987 s, how fast will (s) he be travelling when (s) he reaches deer?

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