3. A 15.0 kg block is pushed up a 35° incline. The coefficient of friction between the block and the incline is 0.480. What minimum force would be needed to move the block up the incline
at a constant speed? (4 marks)
4. A child pulls an 8.50 kg toboggan across the sidewalk by exerting a 60.0 N force in the
direction shown. The coefficient of friction between the toboggan and sidewalk is
0.520. What is the acceleration of the toboggan? (5 marks)

Date chapter motion and speed review part a. vocabulary review directions: write the terms that match each description below in thes complete the sentence in number 13. ich each description below in the spaces provided. the boxed letters will 1. equal forces acting in opposite directions (2 words) 2. occurs when an object's velocity decreases (2 words) 3. sum of all forces acting on an object (2 words) 4. total distance divided by total time (2 words) 5. name for the slant of a line on a graph 6. distance divided by time 7. a push or a pull exerted on a body or object 8. distance and direction of an object from its starting point 9. tendency to resist change in motion 10. measure of how far an object has moved 11. speed and direction of motion 12. rate of change of position at a specific point in time (2 words) 13. the rate of change in velocity is called motion and spe

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is