Two forces are applied to a wheel with a radius of 1 m. The 50 N force is perpendicular to the wheel and paints up. The 20 N force is perpendicular to the wheel and points down. What is the torque on the wheel? A: 30 N m
B: 70 N m
C: -30 N m
D: -70 N m

In physics the desire of an object to keep doing what it is doing is termed?

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?