a body is projected horizantly with velocity 196 m/s from height 400 m . what is the time to reach the ground. a. 5 sec b. 9 sec c. 15 sec d. 20 sec answer is b 9 sec.
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9 secs is the answer
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1
Answer:
9 secs
Step-by-step explanation:
t=√2h/g
=√2×400/10
=√800/10
=√80
= nearly 9
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