he log has a mass of m = 934 kg; the truck has a mass of...
he log has a mass of m = 934 kg; the truck has a mass of M = 9250 kg. According to the truck manufacturer, the truck can accelerate from 0 to 55 mph in 27.0 seconds, but this does not account for the additional mass of the log. Calculate the minimum coefficient of static friction μs needed to keep the log in the back of the truck.
Homework Answers
Sapting Learning While hauling a log in the back of a flatbed truck are pulled over...
Sapting Learning While hauling a log in the back of a flatbed truck are pulled over by the state police. Although the can't roll sideways, the police claim that the log could have slid out the back of the truck when accelerating from rest. You claim that the truck couldn't possibly accelerate at the level needed to achieve such an effect. Regardless, the police write a ticket anyway and now your day in court is The log has a mass...
While hauling a log in the back of a flatbed truck, a driver is pulled over...
While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police. Although the log cannot roll sideways, the police claim that the log could have slid out the back of the truck when accelerating from rest. The driver claims that the truck could not possibly accelerate at the level needed to achieve such an effect. Regardless, the police write a ticket, and the driver's court date is approaching. The log has...
A block with mass m1 = 9.4 kg is on an incline with an angle θ = 26° with respect to the horizontal
A block with mass m1 = 9.4 kg is on an incline with an angle θ = 26° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.24 and μs = 0.264. 1) When there is no friction, what is the magnitude of the acceleration of the block? 2) Now with friction, what is the magnitude of the acceleration of the block after it...
A ladder of length L = 2.8 m and mass m = 22 kg rests on...
A ladder of length L = 2.8 m and mass m = 22 kg rests on a floor with coefficient of static friction μs = 0.57. Assume the wall is frictionless. *What is the minimum angle the ladder must make with the floor to not slip? A person with mass M = 60 kg now stands at the very top of the ladder. *What is the normal force the floor exerts on the ladder? *What is the minimum angle to...
A ladder of length L = 2.5 m and mass m = 20 kg rests on...
A ladder of length L = 2.5 m and mass m = 20 kg rests on a floor
with coefficient of static friction μs = 0.52. Assume
the wall is frictionless.
1)What is the normal force the
floor exerts on the ladder? 196.2N
2) What is the minimum angle the ladder must make with the floor
to not slip?
3)
A person with mass M = 63 kg now
stands at the very top of the ladder.
What is the...
m A block with mass m, - 8.9 kg is on an incline with an angle...
m A block with mass m, - 8.9 kg is on an incline with an angle 8 - 24" with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: Pk - 0.23 and Ms - 0.253. 1) When there is no friction, what is the magnitude of the acceleration of the block? 3.99 m/s2 Submit Your submissions: 3.99 Computed value: 3.99 Feedback: Correct! Submitted: Wednesday,...
An air-track glider of mass 0.109 kg is attached to the end of a horizontal air...
An air-track glider of mass 0.109 kg is attached to the end of a horizontal air track by a spring with force constant 24.5 N/m (a) With the air track turned off, the glider travels 8.0 cm before it stops instantaneously. How large would the coefficient of static friction μs have to be to keep the glider from springing back to the left? (b) If the coefficient of static friction between the glider and the track is μs= 0.65, what...
A block of mass m is placed against the vertical front of a cart of mass...
A block of mass m is placed against the vertical front of a cart
of mass M as shown in the figure. (Figure 1)
Assume that the cart is free to roll without friction and that
the coefficient of static friction between the block and the cart
is μs. Derive an expression for the minimum
horizontal force that must be applied to the block in order to keep
it from falling to the ground.
Express your answer in terms of...
A box of mass m = 2.00 kg is positioned on a ramp at an angle...
A box of mass m = 2.00 kg is positioned on a ramp at an angle θ. The length of the ramp (minus the width of the base of the box) is d = 3.00 m. The surface of the ramp has a coefficient of static friction μs = 0.500 and a coefficient of kinetic friction μk = 0.350. The angle θ is slowly increased until the box starts to slide down the ramp. Calculate the angle θmax at which...
An air-track glider of mass 0.100 kg is attached to the end of a horizontal air track by a spring with force constant 20.0 N/m. Initially the spring is unstreched and the glider is moving at 1.50 m/s...
An air-track glider of mass 0.100 kg is attached to the end of a horizontal air track by a spring with force constant 20.0 N/m. Initially the spring is unstreched and the glider is moving at 1.50 m/s to the right. With the air track turned off, the coefficient of kinetic friction is μk=0.47. It can be shown that with the air track turned off, the glider travels 8.6 cm before it stops instantaneously. How large would the coefficient of...
Sapting Learning While hauling a log in the back of a flatbed truck are pulled over by the state police. Although the can't roll sideways, the police claim that the log could have slid out the back of the truck when accelerating from rest. You claim that the truck couldn't possibly accelerate at the level needed to achieve such an effect. Regardless, the police write a ticket anyway and now your day in court is The log has a mass...
While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police. Although the log cannot roll sideways, the police claim that the log could have slid out the back of the truck when accelerating from rest. The driver claims that the truck could not possibly accelerate at the level needed to achieve such an effect. Regardless, the police write a ticket, and the driver's court date is approaching. The log has...
A ladder of length L = 2.5 m and mass m = 20 kg rests on a floor
with coefficient of static friction μs = 0.52. Assume
the wall is frictionless.
1)What is the normal force the
floor exerts on the ladder? 196.2N
2) What is the minimum angle the ladder must make with the floor
to not slip?
3)
A person with mass M = 63 kg now
stands at the very top of the ladder.
What is the...
m A block with mass m, - 8.9 kg is on an incline with an angle 8 - 24" with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: Pk - 0.23 and Ms - 0.253. 1) When there is no friction, what is the magnitude of the acceleration of the block? 3.99 m/s2 Submit Your submissions: 3.99 Computed value: 3.99 Feedback: Correct! Submitted: Wednesday,...
A block of mass m is placed against the vertical front of a cart
of mass M as shown in the figure. (Figure 1)
Assume that the cart is free to roll without friction and that
the coefficient of static friction between the block and the cart
is μs. Derive an expression for the minimum
horizontal force that must be applied to the block in order to keep
it from falling to the ground.
Express your answer in terms of...
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