Question1

A skateboarder shoots off a ramp with a velocity of 5.3m/s, engaged at an angle of 59 degrees above the horizontal. The end of the ramp is 1.2m above the ground. Let the x axis be parallel to the ground, +y direction to be vertically rising, and take as and origin the point on the ground directly under the top of the ramp. How high above the ground is the highest point that the skateboarder reaches? While the skateboarder reaches the highest point, how far is this point horizontally from end of the ramp?

Question2

A 67 kg boy and a 47 kg girl use an elastic rope as engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, discover the magnitude of acceleration of the boy toward the girl.