A stone is dropped from the edge of the roof. (A) how long does it take to fall 4.9m
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Answered by
69
since the stone is dropped from roof , its
u = 0m/s
s = 4.9 m
t = ?
g = 9.8 m/s²
using the formula ,
s = ut+1/2gt²
4.9 = 0(t)+1/2 × 9.8 × t²
4.9 = 0+ 4.9 × t²
4.9/4.9 = t²
1 = t² => t = √1 => 1 second
hope this helps
u = 0m/s
s = 4.9 m
t = ?
g = 9.8 m/s²
using the formula ,
s = ut+1/2gt²
4.9 = 0(t)+1/2 × 9.8 × t²
4.9 = 0+ 4.9 × t²
4.9/4.9 = t²
1 = t² => t = √1 => 1 second
hope this helps
Answered by
2
Answer:
by 2law of newton
g=9.8
h=4.9
=1
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