A body thrown vertically upwards from the ground comes back to the ground in 4 sec.What is the maxheight attained by the body?
Answers
Answered by
0
Answer:20m
Explanation:
2u/g=4
U=20m/s
And u^2/2g is Max height
20x20/2x10
=20m
Answered by
0
Answer:
20m
Explanation:
Hey Mate
Here's your answer
We Have a formula
T=√(2u/g )
here
u=speed of body
g=10m/s²
4=2u/10
40=2u
u=√20m/s
u=2√5 m/s
Now for maximum Height
s=ut+1/2 at²
Here a=-g. because body is thrown against gravity
T=2sec
S=2√5 * 2 -1/2 * 10 * 2²
=4√5-5*4
=4(√5-5)
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