A boy on a cliff 480 m high drops a stone. One second later he throws a second stone after the first. They both hit the ground at the same time. With what speed does he throw the second stone? (Take g=10m/s2).

A boy on a cliff 480 m high drops a stone. One second later he throws

1.	A boy on a cliff 480 m high drops a stone. One second later he throws a second stone after the first. They both hit the ground at the same time. With what speed does he throw the second stone? (Take g=10m/s2).
Answer» A boy on a cliff 480 m high drops a stone. One second later he throws a second stone after the first. They both hit the ground at the same time. With what speed does he throw the second stone? (Take g=10m/s²).