Question

A block of ice with mass 6.00 kg is initially at rest on a frictionless, horizontal...

A block of ice with mass 6.00 kg is initially at rest on a frictionless, horizontal surface. A worker then applies a horizontal force F⃗ to it. As a result, the block moves along the x-axis such that its position as a function of time is given by x(t)=αt2+βt3, where α = 0.210 m/s2 and β = 2.07×10−2 m/s3 .Calculate the velocity of the object at time t = 3.50 s .Calculate the magnitude of F⃗ at time t = 3.50 s . Calculate the work done by the force F⃗ during the first time interval of 3.50 s of the motion.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A block of mass 2.00 kg is initially at rest at x=0 on a slippery horizontal...
A block of mass 2.00 kg is initially at rest at x=0 on a slippery horizontal surface for which there is no friction. Starting at time t=0, a horizontal force Fx(t)=β−αt is applied to the block, where α = 6.00 N/s and β = 4.00 N. What is the largest positive value of x reached by the block? How long does it take the block to reach this point, starting from t = 0. What is the magnitude of the...
A 0.225 kg block attached to a light spring oscillates on a frictionless, horizontal table. The...
A 0.225 kg block attached to a light spring oscillates on a frictionless, horizontal table. The oscillation amplitude is A = 0.190 m and the block moves at 3.50 m/s as it passes through equilibrium at x = 0. (a) Find the spring constant, k (in N/m). N/m (b) Calculate the total energy (in J) of the block-spring system. J (c) Find the block's speed (in m/s) when x = A/2 m/s.
A 1.75 kg object is initially at rest on a horizontal frictionless surface and is attached...
A 1.75 kg object is initially at rest on a horizontal frictionless surface and is attached to an initially unstretched spring with a force constant of 50 N/m and negligible mass. A constant horizontal force of 338.75 N is applied to the object. Determine the following when the object has slide a distance 0.75 m: the work done by the applied force  J, the energy stored in the spring  J, the object's final kinetic energy  J, and the object's final speed  m/s.
A 8.00-kg block of ice, released from rest at the top of a 1.08-mm-long frictionless ramp,...
A 8.00-kg block of ice, released from rest at the top of a 1.08-mm-long frictionless ramp, slides downhill, reaching a speed of 2.70 m/s at the bottom. A: What is the angle between the ramp and the horizontal? B: What would be the speed of the ice at the bottom if the motion were opposed by a constant friction force of 10.1 N parallel to the surface of the ramp?
A 2.16-kg object on a frictionless horizontal track is attached to the end of a horizontal...
A 2.16-kg object on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 5.00 N/m. The object is displaced 2.82 m to the right from its equilibrium position and then released, initiating simple harmonic motion. A) What is the force (magnitude and direction) acting on the object 3.50 s after it is released? B) How many times does the object oscillate in 3.50 s? (Do not round your answer to an integer.)
A block of mass M = 5.80 kg, at rest on a horizontal frictionless table, is...
A block of mass M = 5.80 kg, at rest on a horizontal frictionless table, is attached to a rigid support by a spring of constant k = 6250 N/m. A bullet of mass m = 8.30 g and velocity of magnitude 570 m/s strikes and is embedded in the block (the figure). Assuming the compression of the spring is negligible until the bullet is embedded, determine (a) the speed of the block immediately after the collision and (b) the...
A block of mass M = 5.60 kg, at rest on a horizontal frictionless table, is...
A block of mass M = 5.60 kg, at rest on a horizontal frictionless table, is attached to a rigid support by a spring of constant k = 5860 N/m. A bullet of mass m = 9.20 g and velocity ModifyingAbove v With right-arrow of magnitude 660 m/s strikes and is embedded in the block (the figure). Assuming the compression of the spring is negligible until the bullet is embedded, determine (a) the speed of the block immediately after the...
A 60.0 N force is applied to an object initially at rest on a frictionless surface,...
A 60.0 N force is applied to an object initially at rest on a frictionless surface, and the object moves 10.0 m in 4.00 s what is the mass of the object? If the force stops being exerted on the object after this first 4.00 s of motion, how far will it travel in the next 4.00 s? [State the value, and briefly explain how you determined it.
A 2.30 kg frictionless block is attached to an ideal spring with force constant 314 N/m...
A 2.30 kg frictionless block is attached to an ideal spring with force constant 314 N/m . Initially the block has velocity -3.50 m/s and displacement 0.240 m . Find the amplitude of the motion.? Find the maximum acceleration of the block.? Find the maximum force the spring exerts on the block.?
A 4.70-kg object on a frictionless horizontal surface is attached to one end of a horizontal...
A 4.70-kg object on a frictionless horizontal surface is attached to one end of a horizontal spring that has a force constant k = 570 N/m. The spring is stretched 9.30 cm from equilibrium and released. (a) What is the frequency of the motion? _____Hz (b) What is the period of the motion? ______s (c) What is the amplitude of the motion? ______cm (d) What is the maximum speed of the motion? ______m/s (e) What is the maximum acceleration of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT