a stone dropped from the roof of a house reaches the ground in 1.5 secs. calculate the distance of the roof from the ground and the velocity of the stone with
which it strikes the ground
Answers
Answered by
13
Here,
initial velocity=0.
final velocity=?(to find)
time=1.5 seconds.
Now,
acceleration =10m/s^2(gravitational force)
So, when anything goes downward it increases it's velocity which means it have acceleration.
a=v-u/t
10m/s^2 = v-0/1.5s
10×1.5=v
15m/s=v
And distance will be 15 m + 1/2 ×15m
=15 m + 7.5 m
=22.5m
initial velocity=0.
final velocity=?(to find)
time=1.5 seconds.
Now,
acceleration =10m/s^2(gravitational force)
So, when anything goes downward it increases it's velocity which means it have acceleration.
a=v-u/t
10m/s^2 = v-0/1.5s
10×1.5=v
15m/s=v
And distance will be 15 m + 1/2 ×15m
=15 m + 7.5 m
=22.5m
aakash204:
Can you explain how
Answered by
4
Answer:22.5m
Explanation:
Here,
initial velocity=0.
final velocity=?(to find)
time=1.5 seconds.
Now,
acceleration =10m/s^2(gravitational force)
So, when anything goes downward it increases it's velocity which means it have acceleration.
a=v-u/t
10m/s^2 = v-0/1.5s
10×1.5=v
15m/s=v
And distance will be 15 m + 1/2 ×15m
=15 m + 7.5 m
=22.5m
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