Physics
18.09.2020 02:07
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4. A sled is pulled horizontally across the snow at constant velocity. The pulling
4. A sled is pulled horizontally across the snow at constant velocity. The pulling force is 40 N.
(Remember: Constant velocity means zero external forces)
a. What is the kinetic Frictional Force on the Sled?
b. if the weight of the sled is 200 N, what is the co-efficient of Kinetic Friction (us) between
the sled and snow?
c. If wood, weighing 300 N is placed in the sled, what pulling force is needed to move the
sled at constant velocity?
Show Answers
a. What is the kinetic Frictional Force on the Sled?
b. if the weight of the sled is 200 N, what is the co-efficient of Kinetic Friction (us) between
the sled and snow?
c. If wood, weighing 300 N is placed in the sled, what pulling force is needed to move the
sled at constant velocity?
GreenHerbz206
4,5(11 marks)
1. 2+0.5+2.5= 3. 2km/hr average
2. 14-6=4seconds. 8m/s in 4s = 2m/s acceleration
3. 15m/s divided by 2.5 = 6m/s acceleration
2. 14-6=4seconds. 8m/s in 4s = 2m/s acceleration
3. 15m/s divided by 2.5 = 6m/s acceleration
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