I) H cloudjoddleappcom I hnpszllcloud.mddleapp.com/eu-west-1(p/coment/_-CuEQai9.pdf SPH3U /25 Unit 2 - Assignment Answer the problems on your own sheets of paper. Each question is worth 5 marks. 1. A horizontal force of 8.0 N is applied to a block of mass 4.0 kg resting on a rough horizontal surface and produces an acceleration of 1.0 ms'l. If the force is doubled to 16. N, what is the acceleration of the block? 2. A 10. kg mass is at rest on a 300 incline where the coefcient of static friction is 0.80. What is the value of the frictional force exerted on the mass? v cloud.toddleapp.com + T https://cloud.toddleapp.com/eu-west-1/p/content/_-CuEQai9.pdf G mac #- Google Search 3. Three blocks, i, ii, and iii, of mass 5m, 3m, and m, respectively, rest on a level horizontal surface and are joined in sequence by string as shown in the diagram below. 11 . . . 111 3m 5m F A constant force F pulls the block of mass 5m to the right. There is no friction. What is the ratio of the tension in the string joining blocks i and ii to the tension in the string joining blocks ii and iii? 4. A box slides down a slope at an angle of 21 to the horizontal. The box is travelling Unit 2 - Assignment 125 at constant speed. What is the coefficient of kinetic friction? Give your answer to 2 significant figures.v cloud.toddleapp.com + T https://cloud.toddleapp.com/eu-west-1/p/content/_-CuEQai9.pdf G mac it#- Google Search A constant force F pulls the block of mass 5m to the right. There is no friction. What is the ratio of the tension in the string joining blocks i and ii to the tension in the string joining blocks ii and iii? 4. A box slides down a slope at an angle of 21 to the horizontal. The box is travelling at constant speed. What is the coefficient of kinetic friction? Give your answer to 2 significant figures. 5. A satellite is orbiting the Earth in a circular orbit at a height above Earth's surface equal to the Earth's radius. What is the acceleration of the satellite? Give your answer to 3 significant figures. 1 of 1