Question

A plane accelerates at 7m/s2 over a time period of 10 seconds while speeding up from rest. What is the planes final speed? (change in speed acceleration x time)=

Answer 1

The final speed of the plane after accelerating at 7 m/s² for 10 seconds from rest is 70 m/s.

Step-by-step explanation:

The student asked about the final speed of a plane that accelerates at 7 m/s2 for a duration of 10 seconds from rest. To calculate the final speed (v) of the plane, we can use the formula of acceleration (a) multiplied by time (t), given that the initial speed (u) is zero since the plane starts from rest. Therefore, the final speed is:

v = u + at

v = 0 m/s + (7 m/s2 × 10 s) = 70 m/s

Hence, the plane's final speed after accelerating for 10 seconds from rest is 70 m/s.