A jet increases its velocity from 400 km/hr to 460 km/hr in 4 seconds. The acceleration is calculated to be 15 km/hr/s. How fast was the jet going 2 seconds into its acceleration?

Protons and neutrons are found within the nucleus of an atom

In a system, when potential energy decreases, then entropy also decreases. true false

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?