A. What is the minimum speed needed to make a projectile shot at an angle of 35" above the ground travel through a hoop 10 m above the ground? b. How far away does the hoop need to be from where the projectile starts?

c. If the projectile lands 3 m below where it started, how long will it be in the air? What is its velocity when it hits the ground?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: