Physics Questions & Answers

Physics Questions & Answers (B) Both cars have the same acceleration and (C) The cars meet at time t=10s - CORRECT ANSWER- The figure shows a graph of the position x of two cars, C and D, as a function of time t 0.0-5.0s - CORRECT ANSWER- According to the graph above, during which interval does the cat have the greatest positive velocity? 0.0m/s - CORRECT ANSWER- What is the speed of an object at rest? 0.0m/s - CORRECT ANSWER- What is the speed of an object at rest? 0.22 - CORRECT ANSWER- A net force of 6.8 N accelerates a 31 kg scooter across a level parking lot. What is the magnitude of the scooter's acceleration? 0.675 m/s east - CORRECT ANSWER- A stroller walks the first half of a straight 1.0 km trail at a steady pace of 0.75 m/s east. He walks the second half at a constant stride of 0.60 m/s east. What is his average velocity along the trial? 1,500m/s^2 - CORRECT ANSWER- A water rocket can reach a speed of 75 m/s in 0.050 seconds from launch. What is its average acceleration? 1.7m/s^2 - CORRECT ANSWER- The graph in the figure shows the velocity of a particle as it travels along the x-axis. What is the magnitude of the average acceleration fo the particle between t=1.0s and t=4.0s? 10 m/s - CORRECT ANSWER- An apple falls from a tree and hits the ground 5 meters below with a speed of about 10.0- 15.0s - CORRECT ANSWER- According to the graph above, the cat has the fastest speed during which interval?