A wheel rotates about a fixed axis with an initial angular v…
A wheel rotates about a fixed axis with an initial angular velocity of 20 rad/s. A constant angular acceleration of 2 rad/s2 us used to increase the angular velocity to 40 rad/s. How many revolutions does the wheel turn in this process?
Read DetailsA [ma] g bullet moving horizontally strikes and remains in a…
A [ma] g bullet moving horizontally strikes and remains in a [mb] kg block initially at rest on the edge of a table. The block, which is initially [h] cm above the floor, strikes the floor a horizontal distance of [R] cm from its initial position. What was the initial speed of the bullet? Please give your answer in units of km/s.
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