3. Forces on an Incline: Find the speed of the crate at the bottom given the coefficient of kinetic friction is 0.10. Use three different approaches. v = 0 10m 30.0° (a) kinematics + dynamics (b) work-kinetic energy theorem
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- i need the answer quickly50. The block lies on a fixed smooth frictionless plane tilted at 43.1 degrees to the horizontal. If the block starts from rest 8.56m up the plane from its base, what will be the block’s speed when it reaches the bottom of the incline?A 20.0 kg box slides up a 12.0 m long incline at an angle of 30.0 degrees with the horizontal. A force of 150 N is applied to the box to pull it up the incline. The applied force makes an angle of 10.0 degrees to the incline and above the incline. If the incline has a coefficient of kinetic friction of 0.100, then the increase in the kinetic energy of the box is Multiple Choice 424 J. 297 J. 250 J. 395 J. 344 J.
- A sledder with a total mass 40.0 kg (including the sled) slides down a 10.0m hill that is 20◦ from the horizontal. There is no friction. i. What is the acceleration of the sledder? ii. Using the equation of motion, what is the sledder’s velocity at the bottom of the hill? iii. Solve the same problem (ii) using conservation of mechanical energy.A box sits on the horizontal bed of a truck that is accelerating to the left, as shown in the diagram. Static friction between the box and the truck keeps the box from sliding around as the truck accelerates. The work done on the box by the static friction force as the accelerating truck moves a distance D to the left is A. Positive B. Zero C. Negative D. Dependent upon the speed of the truck1. If a Force acts upon an object while it is moving, work is said to be done upon the object by that force. Write true if the statement is correct. If false, write the word or phrase that makes it incorrect and write the correct answer.