In procedure 1: suppose the hanging mass is mH = 285 g and the mass of the cart is mc = 762 g.
a) Assume there is no friction anywhere in the system, and the system starts at rest.
I. Find the magnitude of the acceleration of the masses.
a = 2.76 x ______m/s2
II. Find the magnitude of the tension in the string.
T = 4.0 ______ x ______N
III. If the track has length L = 3.78 m, find Vf, the speed of the cart just before it hits the barrier.
v= _______m/s
IV. Find tf, the time it takes the cart to travel the 3.78 m to hit the barrier.
Tf = ________s
b) Look at the drawing of the apparatus in the Basic Concepts section. You now tilt the track (lifting the end with the pulley) so it makes an angle θ with the horizontal until the cart and hanging mass are in equilibrium. Using the given masses: find θ.
θ =_______ o.