KILL Classuntion usted Question 5 A diver running at 4.5 m/s horizontally, leaves the top of a 10.0 metre cliff and reac
Posted: Wed Jun 08, 2022 8:13 pm
- Kill Classuntion Usted Question 5 A Diver Running At 4 5 M S Horizontally Leaves The Top Of A 10 0 Metre Cliff And Reac 1 (18.21 KiB) Viewed 33 times
- Kill Classuntion Usted Question 5 A Diver Running At 4 5 M S Horizontally Leaves The Top Of A 10 0 Metre Cliff And Reac 2 (22.17 KiB) Viewed 33 times
- Kill Classuntion Usted Question 5 A Diver Running At 4 5 M S Horizontally Leaves The Top Of A 10 0 Metre Cliff And Reac 3 (15.82 KiB) Viewed 33 times
- Kill Classuntion Usted Question 5 A Diver Running At 4 5 M S Horizontally Leaves The Top Of A 10 0 Metre Cliff And Reac 4 (20.28 KiB) Viewed 33 times
- Kill Classuntion Usted Question 5 A Diver Running At 4 5 M S Horizontally Leaves The Top Of A 10 0 Metre Cliff And Reac 5 (22.23 KiB) Viewed 33 times
Question 7 A 40.0 kg box is sliding at constant speed down a rough inclined plane as shown. 40.0 kg 30* a) What is the size of the frictional force acting on the box? (2 marks) b) Find the coefficient of kinetic friction between the box and the plane. (2 marks) Question 8 A very powerful sports car of mass 950 kg accelerates from an initial 10.0 m/s to a speed of 45.0 m/s in a time of 3.00 seconds. Assuming uniform acceleration, and negligible friction, find: a) The work done by the car's engine (2 mark) b) The power needed to accelerate the car in this way (1 mark)
Question 9 The figure shows a bead of 50.0 gram mass sliding on a wire. If friction forces are negligible and the bead starts from rest at point A, find: 80 cm a) The speed of the bead at point B. (2 mark) b) The speed of the bead at point C. (3 mark)
Question 11 On a smooth horizontal table, a metal block of 1.50 kg mass is spinning at 1.25 revolutions per second, at the end of a string of length 0.75 m. The mass is spinning in a clockwise direction. View from the top: 1.50 Kg a) Using arrows, show on the above diagram the direction of the velocity and the acceleration of the mass b) Determine the period of the rotation c) Find the speed of the mass. d) Find the size of the centripetal force acting on the mass (2 mark) (1 marks) (2 marks) (1 marks)
Question 12 A satellite, with a mass of 1.25x10 kg, is sent into a circular orbit around the Earth, where it travels with a speed of 7716 m/s. The Earth's mass is 5.97×10¹ kg a) Find the radius of the satellite's orbit. (2 marks) b) Calculate the size of the Earth's gravitational force on the satellite. (2 marks) Question 13 The planet Mars has a mean radius 3.38×106 m and mass 6.42×1023 kg. Find the strength of Mars' Gravitational field (g) on the surface of Mars.