Physics, asked by tejasdiware, 11 months ago

21. Take the uniform acceleration near the surface of earth to
be 9.8 ms for a free-fall. What is the velocity of a body at
the end of two second of free-fall, if the initial velocity is
zero ?
a) 9.8 mst
b) 19.6 msi
c) 3 x 9.8 ms
d) 4 x 9.8 msi​

Answers

Answered by sp6559568
1

Answer:

Answer. We know that acceleration due to gravity on earth = 9.8 m s–2 ... earth. Answer. Given, initial velocity, u = 49 m/s. The final velocity, v = 0, when it achieves the maximum

Answered by ruhibhat06
1

Answer:

b. 19.6 m/s

Explanation:

since, v = u + at

0 + 9.8 *  2  = 19.6

therefore,

the answer is 19.6 m/s

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