Two football players are pushing a 60 kg blocking sled across the field at a constant...
Two football players are pushing a 60 kg blocking sled across the field at a constant speed of 2.5 m/s. The coefficient of kinetic friction between the grass and the sled is 0.30. Once they stop pushing, how far will the sled slide before coming to rest?
Homework Answers
this is a question of conservation of energy
KE imparted by the players will be lost into overcoming the friction
0.5mv^2 = umg*S
2.5^2 = 2*9.8*0.3*S
s = 1.06 m
Add Answer to:
Two football players are pushing a 60 kg blocking sled across
the field at a constant...
5) Fred (mass 60 kg) is running with the football at a speed of 6.0 m/s...
5) Fred (mass 60 kg) is running with the football at a speed of 6.0 m/s when he is met head-on by Brutus (mass 120 kg), who is moving at 4.0 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. Which way do they slide and how far? The coefficient of kinetic friction between football uniforms and the ground is 0.30.
A hockey puck (mass = 3 kg) leaves the players stick with a speed of 18...
A hockey puck (mass = 3 kg) leaves the players stick with a speed of 18 m/s and slides on the ice before coming to rest. The coefficient of friction between the puck and the ice is 0.4. How far will the puck slide after leaving the players stick?
A 31 kg boy on a 4 kg sled is at the top of a slope...
A 31 kg boy on a 4 kg sled is at the top of a slope that is 6 m high. He slides down the snow-covered, frictionless slope and across a road that is 8 m wide and then up a driveway at an angle of 15o. Both the road and the driveway have a coefficient of kinetic friction k = 0.36. How far does the boy slide up the driveway before he comes to a stop?
You pull a your friend along in a sled (combined mass is 65 kg), by pulling...
You pull a your friend along in a sled (combined mass is 65 kg), by pulling the rope at an upward angle of 20 degrees with respect to the ground with enough force to keep the sled moving at a constant velocity of <3,0, 0> m/s. The coefficient of kinetic friction between the ground and the sled is 0.15. (a) Draw a force diagram for the friend/sled system. (b) Once you get to constant velocity, you pull the sled 15...
If the coefficient of kinetic friction is 0.90, find the distance (d) that the sled moved...
If the coefficient of kinetic friction is 0.90, find the distance (d) that the sled moved along the rough surface from position C to position D before coming to a stop. Initial speed is 5 m/s m = 80 kg u = 0 from A to C at rest rough surface = = == = = = = = 3.0 m 2.5 m 2.5 m y = 0
v = 2 m/s F = 100 N 3. (4 points) A child pushes a 20...
v = 2 m/s F = 100 N 3. (4 points) A child pushes a 20 kg box across a wood floor as shown in Figure 3. The force exerted by the child is 100 N and horizontal. If the box is moving with a constant speed, 2 m/s. (a). Find the magnitude and the direction of the kinetic friction force on the box (b). Determine the coefficient of kinetic friction between the box and the floor. (C). If the...
A 51.9-kg person, running horizontally with a velocity of +3.43 m/s, jumps onto a 14.2-kg sled...
A 51.9-kg person, running horizontally with a velocity of +3.43 m/s, jumps onto a 14.2-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?
A 67.6-kg person, running horizontally with a velocity of +4.85 m/s, jumps onto a 19.1-kg sled...
A 67.6-kg person, running horizontally with a velocity of +4.85 m/s, jumps onto a 19.1-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?
Newton's second law: Rudolph the red nosed reindeer is pulling a 25 kg sled across the...
Newton's second law: Rudolph the red nosed reindeer is pulling a 25 kg sled across the snow in a field. The coefficient of kinetic friction is .12 The rope that is pulling the sled is coming off at a 29 degree angle above the horizontal. Find the force in the rope when the acceleration is .12 m/s^2.
A dad pulls his child on a sled at a constant speed across a rugged snowy...
A dad pulls his child on a sled at a constant speed across a rugged snowy road with a force of 159 N in a direction of 42° above the horizontal. The mass of the child and sled is 38 kg. Compute the coefficient of friction. (HINT: Set up the force equations and Derive the expression the coefficient of friction between sled and snow.)
5) Fred (mass 60 kg) is running with the football at a speed of 6.0 m/s when he is met head-on by Brutus (mass 120 kg), who is moving at 4.0 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. Which way do they slide and how far? The coefficient of kinetic friction between football uniforms and the ground is 0.30.
If the coefficient of kinetic friction is 0.90, find the distance (d) that the sled moved along the rough surface from position C to position D before coming to a stop. Initial speed is 5 m/s m = 80 kg u = 0 from A to C at rest rough surface = = == = = = = = 3.0 m 2.5 m 2.5 m y = 0
v = 2 m/s F = 100 N 3. (4 points) A child pushes a 20 kg box across a wood floor as shown in Figure 3. The force exerted by the child is 100 N and horizontal. If the box is moving with a constant speed, 2 m/s. (a). Find the magnitude and the direction of the kinetic friction force on the box (b). Determine the coefficient of kinetic friction between the box and the floor. (C). If the...
Newton's second law: Rudolph the red nosed reindeer is pulling a 25 kg sled across the snow in a field. The coefficient of kinetic friction is .12 The rope that is pulling the sled is coming off at a 29 degree angle above the horizontal. Find the force in the rope when the acceleration is .12 m/s^2.
Most questions answered within 3 hours.
-
Find P(X-bar > 15.5)
n=81, Mean=15, SD=1
asked 17 minutes ago -
3. What percentage of search engine users don’t go to the next
page of search results?...
asked 1 minute ago -
Since Tanya Martin retired, she has used income from her
investment in the Alger Mid Cap...
asked 7 minutes ago -
Determine the point estimate of the population proportion, the
margin of error for the following confidence...
asked 18 minutes ago -
How do you do this again? thanks in advance guys
Take as input 10 integers from...
asked 19 minutes ago -
A single-turn circular loop of wire of radius 5.0 cm lies in a
plane perpendicular to...
asked 18 minutes ago -
an engine manufacturer makes the claim that the engine they have
developed will, on each cycle...
asked 22 minutes ago -
20ml 0.1020M nitric acid is titrated with 0.1010M sodium hydroxide.
what is the volume of base...
asked 23 minutes ago -
Trucks in a delivery fleet travel a mean of 80 miles per day
with a standard...
asked 43 minutes ago -
What social, political, and organizational behavior can
influence change in criminal justice agencies?
asked 57 minutes ago -
Explain the value chain defined by Michael Porter, and compare
it with the REA ontology definition....
asked 1 hour ago -
Question:
A simple random sample of size n = 15 is collected for the
duration of...
asked 1 hour ago