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A ball of mass m kg hits an inclined smooth surface with a velocity $V_A=3 m/s.$ Find out velocity of rebound
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A body of mass 2 kg is projected upwards from the surface of the ground at t = 0 with velocity20 m/s.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A 30N block is released from rest. It slides down a rough incline having coeff of friction 0.25. Determine the max compression of spring
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A motorist travelling at a speed of 90 kmph suddenly applies the brakes & comes to rest after skidding 100m
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A 50 kg block kept on $15^\circ$ inclined plane is pushed down the plane with an initial velocity of 20 m/s.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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Explain work energy principle.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A spring of stiffness k is placed horizontally and a ball of mass m strikes the spring with a velocity v. Find the maximum compression of the spring. Take m = 5 kg, k = 500 N/m, v = 3m/s
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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Two masses of 60 N & 30N are positioned over frictionless & massless pulley (fig.) If the 60 N. mass is released from rest,
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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The platform P (fig.) has negligible mass and is tried down so that the 0.4 m long cords keep a 1 m long spring compressed to 0.6 m. When nothing is on the platform.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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Define the terms with neat sketches: Direct impact, oblique impact & line of impact.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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The 550 N box (fig.) rests on a horizontal plane for which the coefficient of kinetic friction $\mu_x=0.32$ .
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A collar of mass 1 kg is attached to a spring and slides without friction along a circular rod which lies in a horizontal plane. The spring is undeformed when the collar is at B.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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If a ball is thrown vertically down with a velocity of 10m/s from a height of 3m. Find the maximum height it can reach after hitting the floor, if the coefficient of restitution is 0.7
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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For crank of concentric mechanism shown in fig. determine the instantaneous centre of rotation of connecting rod at position shown.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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In a crank and connecting rod mechanism, the length of crank and the connecting rod are 300 mm and 1200 mm respectively. The crank is rotating at 180 rpm
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A stone is thrown with a velocity (u) m/sec at an angle of $20^\circ$ with horizontal from a point 2 m above the ground. The stone strikes the ground 5 m away from the original position
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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For a vehicle moving along a straight line, v-t diagram is as shown in fig. below. Plot a-t and s-t diagrams for the given time period.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A fighter plane moving horizontally with a constant velocity of 200 m/sec releases a bomb from an altitude of 400 m.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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Find the angle the force P makes with horizontal such that the block of mass 4 kg has an acceleration of $10m/sec^2, $
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A particle travels on a circular path, whose distance travelled is defined by $S=(0.5t^3 + 3t)m.$ If the total acceleration is $10m/s^2,$ at t=2 sec, find it's radius of curvature.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A particle moves in a straight line with acceleration-time diagram as shown in figure
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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An object is projected so that it just clears two obstacles each of 7.5m height, which are situated 50m from each other. If the time passing between the obstacles is 2.5s
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A particle is projected with an initial velocity of 2m/s along a straight line. The relation between acceleration and time is given in the diagram. Draw v-t and s-t diagram.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A particle moves along a track which has a parabolic shape with a constant speed of 10m/sec. The curve is given by $y = 5 = 0.3x^2 .$
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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A wheel of 2m diameter rolls without slipping on a flat surface. The center of the wheel is moving with a velocity 4m/s towards the right.
engineering mechanics updated 4.0 years ago by teamques10 ★ 65k
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