A powerful missile reaches a speed of 5 kilometers per second in 10 seconds after its launch. What is the average acceleration of the missile during this period?

a) 0.2 meters/second^2
b) 0.4 centimeters/second^2
c) 0.5 meters/second^2
d) 0.5 kilometers/second^2

Question

A powerful missile reaches a speed of 5 kilometers per second in 10 seconds after its launch. What is the average acceleration of the missile during this period?

a) 0.2 meters/second^2
b) 0.4 centimeters/second^2
c) 0.5 meters/second^2
d) 0.5 kilometers/second^2

shane_b · Answer

Use:$$\large\frac{\Delta V}{\Delta t}=\frac{V_f-V_i}{10s}=\frac{5km/s-0km/s}{10s}=0.5km/s^2$$

anonymous · Answer

I got that answer by guessing but I don't understand what the V are for.

shane_b · Answer

velocity (final) and velocify(initial)

anonymous · Answer

Thank you so much!

shane_b · Answer

np :)  Good luck