A26-kg sled is on a snow-covered slope. the coefficients of friction between the sled’s runners and the snow are µs = 0.096 and µk = 0.072. what pulling force must be exerted on the sled as pictured in order to (a) start the sled sliding and (b) continue to slide the sled at constant velocity?

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.