Suppose that you toss a rock upward so that it rises arid then falls back to the

Question

Suppose that you toss a rock upward so that it rises arid then falls back to the earth. If the acceleration due to gravity is 98 m/sec^2. what is the rock?s acceleration at the instant that it reaches the top of its trajectory (where its velocity is momentarily zero)? Assume that air resistance is negligible. The rock has a downward acceleration of 196 m/s^2 The rock has a downward acceleration of 9 8 m/s^2. The rock has an upward acceleration of 9.8 m/s^2 The acceleration of the rock is zero. The rock has an upward acceleration of 19,6 m/s^2

Explanation / Answer

at the top of its trajectory

B. the rock has a downword accelartion of 9.8 m/s^2

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