1. A car is travelling at 15.0 m/'s (54 km/h), and the driver sees the traffic light ahead turn yellow. After 0.360 s (the driver's reaction time) the driver hits the gas, accelerating the car at 3.27 m/s * for the remaining 3.14 s before the light turns red. What is the distance travelled by the car, measured from the point where the driver first sees the yellow light, until the light changes to red? * This acceleration is roughly equivalent to "flooring it"; i.c., 0 - 60 mph in 8.2 seconds. Page 4 2. A soccer player is practicing their shots on goal. From ground level a distance of 18.5 m from the goal, the ball leaves the player's foot with a speed of 19.0 m's at 32.0' above the horizontal. The goalkeeper stops the ball on the goal-line. The net is 2.44 m high and 7.32 m wide. a. What is the ball's velocity just as the keeper is catching it? b. If the keeper had missed, would the ball have been low enough to pass beneath the crossbar? Page 5 3. In the diagram below, a block is resting on an incline. The coefficients of static and kinetic friction between the block and the slope are equal at a value of 0.320. Use Newton's Laws to answer the following: Determine whether the block will stay motionless or begin to slide. b. If the block is sliding down the slope, determine its acceleration. 5.00 kg 25