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03-12-2020
Chemistry

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WHEN A SOCCER PLAYER KICKS A BALL, THE BALL ACCELRATES. EXPLAIN WHAT CAUSES THIS ACCELERATION IN TERMS OF FORCES?

EXPLAIN WHAT HAS A GREATER INERTIA- A SPEEDING CAR OR A JET AIRPLANE SITTING ON A RUNWAY.

DO FORCES ALWAYS CAUSE MOTION? EXPLAIN

DESCRIBE THREE EXAMPLES FROM SPORTS IN WHICH A FORCE CHANGES HE VELOCITY OF AN OBJECT OR A PERSON.

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03-12-2020

Answer:

When we kick the ball, the force we apply to it causes it to accelerate from a speed of 0 to a speed of dozens of kilometers per hour. When the ball is released from the foot, it begins to decelerate (negative acceleration) due to the force of friction that is exerted upon it (as we observed in the previous example).

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