2d motion kinematics (phys) probs
These aren't especially hard, but I have no time to examine them since being assigned as I've had stuff to deal with yesterday. Now time is running short. Any help would be appreciated.
A skier leaves the ramp of a ski jump with a velocity of v = 18.0 m/s, = 15.0° above the horizontal. The slope is inclined at 50.0°, and air resistance is negligible. (Assume up and right are positive, and down and left are negative.)
Find total distance from edge of ramp to landing.
Find velocity components just before landing.
A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 8.50 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 50.0° with the horizontal and to be in line with the track. The student's professor, who is standing on the ground nearby, observes the ball to rise vertically. How high does she see the ball rise?