Solve the Problem $t$ Seconds Is Given By $s(t)=-16 t^{2}+118 t$ How Fast Is the Ball Moving 7 Seconds After

Multiple Choice

Solve the problem.
-A ball is thrown vertically upward from the ground at a velocity of 118 feet per second. Its distance from the ground after $t$ seconds is given by $s(t) =-16 t^{2}+118 t$ . How fast is the ball moving 7 seconds after being thrown?

A) $6 \mathrm{ft}$ per sec
B) $-106 \mathrm{ft}$ per sec
C) $42 \mathrm{ft}$ per sec
D) $-127 \mathrm{ft}$ per sec