Acar traveling down the interstate accelerates to pass a truck. the car accelerates at a rate of 2.8 m/s2 for 3.9 seconds and reaches a speed of 30.9 m/s. calculate how fast the car was going before it accelerated to pass the truck. a 86.5 m. s b 27.7 m/s c 20.0 m/s d 41.8 m/s e 16.3 m/s

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Time remainin52: 42the chart shows data for a moving object. which conclusion is best supported by the information inthe chart? time (s)velocity (m/s

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p