1.a car goes off a cliff horizontally at 49 m/s and falls for 5 seconds
a. what us the vertica...
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1.a car goes off a cliff horizontally at 49 m/s and falls for 5 seconds
a. what us the vertical speed of the car after 5 seconds?
b. what is the horizontally speed of the car after 5 seconds ?
c. what is the actual speed of the car after 5 seconds ?
2.a golfer wants to drive a golf ball a distance of 120 m. if the 3-wood launches the ball at 12 degree above the horizontal. what must be the initial speed of the ball to achieve the required distance ?
3. a place kicker must kick a football from a point of 28 m from the goal and the ball must clear the crossbar, which is 3 m high. when kicked, the ball leaves the ground with a speed of 25 m/s at an angle of 45 degree to the horizontal.
a. by how much does the ball clear of fall short of clearing the crossbar?
b. does the ball approach the crossbar while it still rising or falling ?
8. flash throws a ball into the air as hard as he can and then runs as fast as he can under the ball in order to catch it. if his maximum speed in throwing the ball is 15 m/s and his best time for the 50 m distance is 5 seconds, how high does the ball raise and at what angle did he shoot i?
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