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Standard X
Mathematics
Calculating Heights and Distances
A girl throws...
Question
A girl throws a ball with initial velocity v at an inclination of
45
Find height and Range ?
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Solution
Given velocity of the ball
v
0
=
v
and angle of projectile
θ
=
45
0
We know time of flight
T
=
v
0
sin
θ
g
=
v
10
√
2
as
sin
45
0
=
1
√
2
and g=10
m
/
s
2
Maximum height
H
=
v
2
sin
2
θ
2
g
=
v
40
and
Horizontal range
R
=
v
2
sin
2
θ
g
=
v
2
10
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