a ball is thrown vertically up from the top of the building with a velocity of 10 metre per second full stop it reaches the ground in 5 second. find the height of the building and the velocity with which the body reaches the ground
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Answer:
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Height of building = 75 m and...
speed when object reaches ground is = 40m/s...
Explanation:
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H= ut+1/2gt²
H= -10×5+1/2×10×5×5
H= -50+125
H= 75m...
v= u+ at
v= -10+ 10×5
v=-10 + 50
v= 40 m/s
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