Assignment:
Question 1. A box is sliding down a plane inclined at an angle of 20 degrees from the horizontal. Find the acceleration of the box, neglecting friction and air resistance.
Possible answers:
(1) 0.342 m^2g
(2) 0.342 m
(3) 0.342 g
(4) 0.342 mg
(5) 0.940 m^2g
(6) 0.940 m
(7) 0.940 g
(8) 0.940 mg
Question 2. A box that is hurled up the inclined plane of the above Problem 1, starts up the plane with an initial velocity of 1,000 cm/sec. Find the speed of the box moving up the plane 3 sec later.
Possible answers:
(1) 0 cm/sec
(2) -5.5 cm/sec
(3) 8.9 cm/sec
(4) 10.1 cm/sec
(5) 42.5 cm/sec
(6) 63.3 cm/sec
(7) 75.3 cm/sec
(8) 98.1 cm/sec.