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WorksheetsU4 HW#3: Calculating Forces w/ Friction
Total questions: 10
Worksheet time: 29mins
What is the proper equation for calculating frictional force?
Frictional Force = Normal Force + Friction Coefficient
Frictional Force = Normal Force - Friction Coefficient
Frictional Force = Normal Force / Friction Coefficient
Frictional Force = Normal Force * Friction Coefficient
7 sled dogs pull a wooden sled. The sled has a mass of 55 Kg. The frictional coefficient between the sled and snow is 0.04. What is the frictional force the dogs are fighting against? (Hint: First, calculate the Normal Force)
-16 N
-22 N
-2.2 Kg
-14 N
7 sled dogs pull a wooden sled to the right with a force of 400 N. The sled has a mass of 55 Kg. The frictional coefficient between the sled and snow is 0.04. What is the acceleration of the sled? (Hint: First calculate the Net Force)
-6.88 m/s^2
16 m/s^2
6.88 m/s^2
7.27 m/s^2
A 0.5 Kg hockey puck slides across an ice floor to the right. The frictional coefficient between the ice and puck is 0.01. What is the frictional force that the puck experiences? (Hint: First calculate the Normal Force)
0.005 N
-0.049 N
0.049 N
-0.005 N
A 0.5 Kg hockey puck slides across an ice floor to the right. The frictional coefficient between the ice and puck is 0.01. What is the acceleration that the puck experiences?
-0.098 m/s^2
-0.005 m/s^2
0.098 m/s^2
0.005 m/s^2
A truck pulls a 5,000 Kg trailer filled with watermelons as it heads north, towards Canada. The frictional coefficient between the road and the trailer's tires is 1.00. What is the frictional force opposing the trailer's motion?
5,000 N
49,000 N
-5,000 N
-49,000 N
Santa’s newly-waxed, wooden sleigh, when empty, has a mass of 400 Kg. Rudolph and the crew pull the sled along the snow with a force of 1,000 N rightwards.(Meu = 0.20) What is the frictional force opposing Rudolph and friends?
80 N
784 N
-80 N
-784 N
Santa’s newly-waxed, wooden sleigh, when empty, has a mass of 400 Kg. Rudolph and the crew pull the sled along the snow with a force of 1,000 N rightwards. (Meu =0.20) What is the net force opposing Rudolph and friends?
216 N
1,784 N
-216 N
-1784 N
WSanta’s newly-waxed, wooden sleigh, when empty, has a mass of 400 Kg. Rudolph and the crew pull the sled along the snow with a force of 1,000 N rightwards. (Meu =0.20) What is the acceleration of Santa's sleigh?
-0.54 m/s2
0.54 m/s2
2.5 m/s2
-2.5 m/s2
Friction is dependent on:
(Select ALL that apply)
Mass
Gravity
Light
Materials in contact
