Chapter 7

NCERT
Class 9
Science
Solutions
7. A ball is gently dropped from a height of 20m. If it's velocity increases. Uniformly at the rate of 10 m/s2 with what velocity will it strike the ground? After what time will it strike the ground?

Question:

A ball is gently dropped from a height of 20m. If it's velocity increases. Uniformly at the rate of 10 m/s2 with what velocity will it strike the ground? After what time will it strike the ground?

Answer:

According to question,

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