Question

package is at rest on a conveyor belt which is initially at rest. The belt is started and moves to the right for

1.3 s with a constant acceleration of 2 m/s2

. The belt then moves with a constant deceleration a2

and comes

to a stop after a total displacement of 2.2 m. Knowing that the coefficients of friction between the package

and the belt are µs

= 0.35 and µk

= 0.25, determine (a) the deceleration a2

of the belt (b) the displacement

of the package relative to the belt as the belt comes to a stop​

Answer 1

Answer:

0.8 m 30° 0.2 m

At the instant shown, wheel A rotates with an angular velocity of w = 6 rad/s and angular acceleration a = 3 rad/s2 in the direction shown. Determine the angular acceleration of link BC and the acceleration of C at this instant.