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2. vt = g / k
3. vt = g / k
4. vt = 0
Answer 3. When the raindrop approaches terminal speed, the rate of change of the speed
approaches zero, so g ! k v 2 " 0 , v ! vt = g / k . Question 2 A particle, starting at rest at t = 0 , experiences a non-constant acceleration
ax (t ) . It’s change of position can be found by
1) Differentiating ax (t ) twice. 2) Integrating ax (t ) twice. 1
ax (t )t 2 .
4) None of the above. 5) Two of the above. Answer 2. The change in x-component of the velocity for an interval [ 0, t ] is the integral
of the x-component of acceleration with respect to time,
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This note was uploaded on 01/23/2014 for the course MATH 8.01SC taught by Professor Peterdournashkin during the Fall '10 term at MIT.
- Fall '10