A small block, with a mass of 350 g, starts from rest at the top of an incline. It slides without friction down the incline, around the inside
of the loop, and continues on the level track to the right. The height
of the incline is 110 cm, and the radius of the loop is 15 cm.
Adam?
To: Every
Type mess
a. Find the initial potential energy of the block.
b. Find the velocity of the block at the bottom of the loop.
c. Find the velocity of the block at the top of the loop.
d. What is the normal force on the block at the bottom of the
loop?
e. What is the normal force on the block at the top of the loop?

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.