1a.A van travels north at constant velocity. It goes over apiece of mud, which s

Question

1a.A van travels north at constant velocity. It goes over apiece of mud, which sticks to the tire. The initial acceleration ofthe mud, as it leaves the ground, is: verticallyupward
zero
horizontally tothe north
horizontally tothe south
upward and forwardat 45 degrees to the horizontal
1b. A wheel starts from rest and spins with a constant angularacceleration. As time goes on the acceleration vector for a pointon the rim: increases inmagnitude and becomes more nearly radial
decreases inmagnitude and becomes more nearly tangent to the rim
increases inmagnitude and becomes more nearly tangent to the rim
increases inmagnitude but retains the same angle with the tangent to therim
decreases inmagnitude and becomes more early radial I'll rate immediately. Thx!

Explanation / Answer

1a.A van travels north at constant velocity. It goesover a piece of mud, which sticks to the tire. The initialacceleration of the mud, as it leaves the ground, is: answer:horizontally to the south since the mud;s speed is zero before the tire sticks, so ithas acceleration when it leaves the ground and with the answerabove.

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