"Per second per second" is a measurement of acceleration. If an object (such as a car) is moving, its speed can be measured in terms of miles per hour, or feet per second (which work out to be a similar figure to miles per hour). If the car is accelerating, the acceleration can be measured in terms of additional speed (feet per second) that is acquired in a given second, therefore, feet per second per second. Get it?
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If the initial velocity is 50 meters per second and the launch angle is 15 degrees what is the maximum height? Explain.
100 m/s
feet per second x 0.3048 = meters per second
2.4 meters per second equates to about 7.874 feet per second.
24.36 kilometer per second is equivalent to 24360 meters per second.