In this chapter we learn that the cause of acceleration is given by Newton's second law: a = Show that the acceleration in the preceding problem
m
results from a net force of 15 N exerted on a 3.0-kg cart.

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.