A ball is released from rest at point A and moves along a smooth track ABCDE. The ball is always in contact with the track and air resistance is negligible.
On Fig. 1.2, mark:
• with the letter P one point where the ball accelerates
(a)(i)• with the letter Q one point where the ball has constant speed.
Determine the speed of the ball at point X on Fig. 1.2.
(a)(ii)Show your working.
The speeds of the ball at A, B, C and D are v_A, v_B, v_C and v_D respectively.
(b)Arrange these four speeds from slowest to fastest (slowest → fastest).
A ball is released from rest at point A and moves along a smooth track ABCDE, where A is the highest point and B is the lowest point of the track. Air resistance is negligible.
Work is done to transfer energy between energy stores as the ball moves from A to B.
(c)Name the force involved in the work done and describe the energy transfer.
A ball is released from rest at point A and moves along a smooth track ABCDE as shown in Fig. 1.1. The ball is shown at point A and as it passes point B.
The ball is always in contact with the track and air resistance is negligible.
The track at point B is circular in shape.
On Fig. 1.1, draw an arrow to show the direction of the resultant force on the ball at point B.