12. In the cam-follower mechanism, the slotted bar rotates with angular velocity 0=10 rad/s and angular acceleration Ö=-5 rad/s² and the radial position of the follower A is determined by the profile of the stationary cam. The path of the follower is described by the polar equation r = 1 + 0.5cos 20 (m). Determine the velocity and acceleration of the cam follower A when 0=150° (a) in terms of of polar coordinates, (b) in terms of cartesian coordinates, (c) in terms of normal and tangential coordinates. y A

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Q: @g=1.6 rad/s 200 1000 30° 400 Dimensions in mm

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Q: In the cam-follower mechanism shown, the slotted bar rotates with constant angular velocity ω = 10…

A: Given Angular velocity = 10 rad/s r = 1+0.5sinθθ=30 To find Acceleration

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A: The given data with the suitable variables is shown below. vr=5 cm/sθ˙=10 rad/saθ=0r=20 cm

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.