. A stone is dropped from the roof of a high building. A second stone is dropped 1.3s later. How far apart are the stones when the second one has reached a speed of 12m/s.

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10. A
. A stone is dropped from the roof of a high building. A second stone is dropped 1.3s later. How
far apart are the stones when the second one has reached a speed of 12m/s.
23.88 m
7.34 m
31.22 m
16.54 m
10. B
A particle is moving on a line according to the equation of motion s=3t^2+5t+4 where s is in
meters. Find the instantaneous acceleration at t=5sec.
6 m/sec^2
5 m/sec^2
9 m/sec^2
O 15 m/sec^2
Transcribed Image Text:10. A . A stone is dropped from the roof of a high building. A second stone is dropped 1.3s later. How far apart are the stones when the second one has reached a speed of 12m/s. 23.88 m 7.34 m 31.22 m 16.54 m 10. B A particle is moving on a line according to the equation of motion s=3t^2+5t+4 where s is in meters. Find the instantaneous acceleration at t=5sec. 6 m/sec^2 5 m/sec^2 9 m/sec^2 O 15 m/sec^2
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