Related InterviewSolutions

• A circular disk of radius r is confined to roll without slipping at P and Q as shown in the figure.If the plates have velocities as shown, the magnitude of the angular velocity of the disk is
• The one end of rope is passing over a frictionless pulley is tied with a block of weight, W as shown in figure. The co-efficient of friction between the block and the horizontal plane is μ. If the other end is allowed to pull without sliding the block, the maximum pull is permitted as
• A rigid triangular body, PQR, with sides of equal length of 1 unit moves on a flat plate. At the instant shown, edge QR is parallel to the x-axis and the body moves such that velocities of points P and R are VP and VR in the x and y directions, respectively. The magnitude of the angular velocity of the body is
• A bullet of mass m travels at a very high velocity V (as shown in the figure) and gets embedded inside the block of mass M initially at rest on a rough horizontal floor. The block with the bullet is seen to move a distance s along the floor. Assuming μ to be the coefficient of kinetic friction between the block and the floor and g the acceleration due to gravity what is the velocity V of the bullet?
• A single block brake with a short shoe and torque capacity of 250 Nm is shown. The cylindrical brake drum rotates anticlockwise at 100 rpm and the coefficient of friction is 0.25. The value of a in mm (round off to one decimal place), such that the maximum actuating force P is 2000 N is212.5
• A flexible but inextensible chain of length l and weight w N/m is held on a smooth table with an initial overhang 'a' as shown in figure. What will be the velocity v with which the chain will leave the table if released?
• The centre B of a wheel rolling on a plane surface moves with a speed V0. The speed of point A, B and C are respectively
• A simple pendulum of length of 5m, with a bob of mass 1 kg, is in simple harmonic motion. As it passes through its mean position, the bob has a speed of 5ms. The net force on bob at the mean position is
• A stone of mass m at the end of a string of length I is whirled in a vertical circle at a constant speed. The tension is the string will be maximum when the stone is
• A solid blcok 'A' weighting 'Q' kg is resting on a flat floor. A smooth cylindder 'B' weighting 'P' kg is placed between the solid A and the vertical wall as shown in figure. The friction between the cylinder, wall and the block A is negligible. The coefficient of friction between the block A and floor is μ. The minimum weight P required to disturb the block A is