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Grade: 11

                        

A rod AB is shown in fig. End A of the rod is fixed on the ground.Block is moving with velocity 3^1/2 m/s towards right.Find the velocity of end B of rod when rod makes an angle of 60 with the ground.

2 years ago

Answers : (1)

Ajay
11 Points
							
Answer is 2×3^0.5..  dx/dt =^{\sqrt{3}}...and dy/dx =\tan \Theta =^{\sqrt{3}}.. so dy/dt= (dy/dx)×(dx/dt) =3..so velocity of B is ^{\sqrt{3}} in x-direction and -3 in y- direction. So resultant is ^{\sqrt{12}}..
2 years ago
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