If a car accelerates at 7.5 mph/s, what would be its final speed after 5.0 seconds if its
1 answer:
Answer:
87.5mph
Explanation:
Given parameters:
Acceleration = 7.5mph/s
Starting speed = 50mph
Time = 5s
Unknown:
Final speed = ?
Solution:
Acceleration is defined as the rate of change of velocity with time:
Acceleration =
Insert the parameters and solve;
7.5 =
Final speed - 50 = 7.5 x 5
Final speed = 7.5 x 5 + 50 = 87.5mph
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