To lay thtravel (s)
Acceleration is a measure of the rate of change of velocity. Whenever an object changes speed or direction, it accelerates. When you step on the gas pedal in your car, for exam- ple, the car accelerates forward. When you slam on the brakes, the car accelerates back- ward (what is sometimes called deceleration). When you go around a curve in your car, even if the car’s speed stays exactly the same, the car is still accelerating because the direction of motion is changing. The most thrilling amusement park rides combine these different kinds of acceleration—speeding up, slowing down, and changing direc- tion in bumps, tight turns, and rapid spins.
To lay thtravel (s)Acceleration is a measure of the rate of change of velocity. Whenever an object changes speed or direction, it accelerates. When you step on the gas pedal in your car, for exam- ple, the car accelerates forward. When you slam on the brakes, the car accelerates back- ward (what is sometimes called deceleration). When you go around a curve in your car, even if the car’s speed stays exactly the same, the car is still accelerating because the direction of motion is changing. The most thrilling amusement park rides combine these different kinds of acceleration—speeding up, slowing down, and changing direc- tion in bumps, tight turns, and rapid spins.
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