Kevin has a mass of 87 kg and is skating with in-line skates. he sees his 22-kg younger brother up ahead standing on the sidewalk, with his back turned. coming up from behind, he grabs his brother and rolls off at a speed of 2.4 m/s. ignoring friction, find kevin’s speed just before he grabbed his brother.

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?

Which of the following statement is false ? a. batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c. do not stack batteries on top of each other)d. never put a damaged battery in a dumpster. i

Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.