A ladder leans against a wall . Its foot is 3m away from the wall and making an angle 35 degree with ground. How high is the other end of the ladder from the ground? (sin 35°= 0.57. cos 35°=0.82, tan 35º = 0.70)
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2
Step-by-step explanation:
In the figure, AC = ladder, AB = wall = 3m, ∠ACB = 30
o
In △ABC, sin 30
o
=
AC
AB
⇒
2
1
=
AC
3
⇒ AC = 6 m.
∴ The length of ladder is 6 m.
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1
P is the momentum of a body of mass m moving with velocity V. What is the momentum of a body of mass m/2 moving with a velocity 2V
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