Question

If a marble is dropped from a cliff, how fast is the marble going after falling for 3.6 seconds?

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Answer 1

35.28m/s

Step-by-step explanation:

Given

Time t = 3.6secs

Required

Final speed v

Using the equation of motion;

v = u + gt

Substitute;

v = 0 + 9.8(3.6)

v = 0 + 35.28

v = 35.28m/s

Hence the speed of the marble is 35.28m/s