A horizontal string holds a solid, steel ball of mass m on an inclined plane that makes a 35.0 degree angle with the horizontal. The ball does not move. The inclined plane is smooth and no friction exists between the ball and the plane. The string is glued to the ball's surface but it is in line with the ball's geometric center. a) draw a free body diagram of the ball. Label all forces.

b) Calculate the magnitude of the force the inclined plane exerts on the surface of the ball.

c) Calculate the magnitude of the tension in the string.

Sorry i don’t know what to do

Dshould be the right answer i think

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.