The rollercoaster is near the
1 answer:
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Answer:
time at which Kathy overtakes Stan is 6.70 sec
Explanation:
given data
time = 1 sec
acceleration= 3.4 m/s²
acceleration = 4.49 m/s²
to find out
the time at which Kathy overtakes Stan
solution
we consider here travel time for kathy = t1
and travel time for stan is = t2
and we know initial velocity = 0
so
t1 = 1 + t2
and distance travel equation by kinematic is
d1 = ut + at²
d1 = 0+ 4.49 (t2)² ................1
and
d2 = 0 + 3.4 (1+t2)² ..................2
and when overtake distance same so from equation 1 and 2
4.49 (t2)² =
3.4 (1+t2)²
t2 = 6.703828 sec
so time at which Kathy overtakes Stan is 6.70 sec
Answer:
The correct Option is (a) please see attachment containing complete question.
Explanation:
1) The motion is basic to and fro motion of an object.
2) Considering the motion as Simple Harmonic Motion (SHM), the graph tells us that the pendulum appears to be moving to the left and slowing down being acted upon positive acceleration.
3) Reaching the left extreme, it stops i.e. V = 0 m/s, and then starts moving to the right due to the component of gravity (g), speeding up.
