A truck is stationary and has a bob suspended by a light string, in a frame attached to the truck. The truck, suddenly moves to the right with an acceleration of a. The pendulum will tilt
A
to the left and angle of inclination of the pendulum with the vertical is sin –1 
B
to the left and angle of inclination of the pendulum with the vertical is tan –1 
C
to the left and angle of inclination of the pendulum with the vertical is sin –1 
D
to the left and angle of inclination of the pendulum with the vertical is tan –1 
Text Solution
Verified by ExpertsThe correct answer is:
B
Due to pseudo force on the bob it will tilt to left.
F.B.D.
T sin θ = ma ...(i)
T cos θ = mg ...(ii)
By dividing equation (i) & (ii)
tan θ = 
θ = tan –1 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A block of mass 10 kg is in contact against the inner wall of a hollow cylindrical drum of radius 1…
An object flying in air with velocity suddenly breaks in two pieces whose masses are in the ratio …
Which one of the following statements is incorrect?.
Two blocks A and B of masses 3m and m respectively are connected by a massless and inextensible str…
One end of string of length l is connected to a particle of mass m and the other end is connected t…
A rigid ball of mass m strikes a rigid wall at 60 and gets reflected without loss of speed as show…