Steve's older brother got this cool new car. he said it can go from a stopped position to 80 miles per hour in ten seconds. his brother is describing the car's
acceleration.
average velocity.
instantaneous speed.
average speed.

A. Acceleration

I hope this helps!

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11