Q. 414.4( 5 Votes )
A car is speeding
Answer :
Given: Let the pendulum (formed by the ball and the string) make angle θ with the vertical.
From the free-body diagram, Tcosθ − mg = 0
Tcosθ = mg
…i
ma − T sin θ = 0
⇒ ma = T sin θ
…. ii
So, the angle formed by the ball with the vertical is tan⁻ �[ a/g.]
(ii) Let the angle of the incline be θ. From the diagram,
⇒ ma cos θ = mg sin θ
So, the angle of incline is tan⁻ �(a/g)
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