While waiting for his Mom to come out of the hairdresser's, Sean accidentally puts the car in gear and it begins to roll forward
1 answer:
The distance travelled by the car is 85 m
Explanation:
The car in this problem here is travelling by uniform motion (so, at constant velocity and constant speed). Therefore, the distance covered by the car after a time t is given by:
where
d is the distance covered
v is the speed
t is the time
For the car in this problem we have
v = 34 m/s
t = 2.5 s
Substituting into the formula, we find
So, the car has travelled for 85 m.
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Answer:
See the answers below
Explanation:
To solve this problem we must use the following equation of kinematics.
where:
Vf = final velocity [m/s]
Vo = initial velocity [m/s]
a = acceleration [m/s²]
t = time [s]
<u>First case</u>
Vf = 6 [m/s]
Vo = 2 [m/s]
t = 2 [s]
<u>Second case</u>
Vf = 25 [m/s]
Vo = 5 [m/s]
a = 2 [m/s²]
<u>Third case</u>
Vo =4 [m/s]
a = 10 [m/s²]
t = 2 [s]
<u>Fourth Case</u>
Vf = final velocity [m/s]
Vo = initial velocity [m/s]
a = acceleration [m/s²]
t = time [s]
<u>Fifth case</u>
Vf = final velocity [m/s]
Vo = initial velocity [m/s]
a = acceleration [m/s²]
t = time [s]