Question

A) A truck climbs a 1,000 m mountain track which is at an angle of 7˚ with respect to the horizontal. How much altitude does it gain?

A) 122m B) 86m C) 463m D) 235m E)312m

B) An elevator weighing 20,000 N is supported by a steel cable. What is the tension in the cable when the elevator is being accelerated downward at a rate of 3.0 m/s²?

A) 28,000 N B) 23,000 N C) 26,000 N D) 14,000 N E) 20,000 N

C) A rock, released at rest from the top of a tower, hits the ground after falling for 4.00 sec. What is the height of the tower?

A)200 ft B) 256 ft C) 132 ft D) 228 ft E) 100 ft

Answer 1