A skydiver slows down from 54 m/s to 4 m/s by opening his parachute. This change takes 0.75 seconds. What is the skydiver's acceleration?
A. 50 m/s2 up
B. 9.8 m/s2 up
O c. 67 m/s2 up
D. 38 m/s2 up

Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good