Snowballs are thrown with a speed of 12.5 m/s from a roof 7.8 m above the ground. Snowball A is thrown straight downward; snowball B is thrown in a direction 16° above the horizontal.

(a) Is the landing speed of snowball A greater than, less than, or the same as the landing speed of snowball B?
same speed greater than less than

Explain

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(b) Verify your answer to part (a) by calculating the landing speed of both snowballs.
snowball A m/s
snowball B m/s

help please. I don't need answers just a way to solve it