A 2.1 x 103-kg car starts from rest at the top of a 4.4-m-long driveway that is inclined at 24° with the horizontal. If an average friction force of 4.0 x 103 N impedes the motion, find the speed of the car at the bottom of the driveway. m/s Need Help? Read It O Show My Work (Optional) ?

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help please  An arrow is shot straight up into the sky at a velocity of 38 m/s. Use conservation of energy to find the maximum height.

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If a block of mass m starts from rest at position 1 as shown below, and slides down the frictionless inclinea. what is its speed at position 2? (Hint: use conservation of energy.)Note: This problem gives no numbers, so don’t put in numbers to do this problem. Of course you can on your scratch paper, if you want to, but for the work on this test, you need to leave it as an algebraic problem.?2 = ______________________________b. If it continues to slide across the frictionless surface, what is the distance, ∆?, that it compresses the spring, with stiffness k, when it stops at position 3?∆?3 = ______________________________ Please write your work clearly

Use energy conservation to find the approximate final speed of a basketball dropped from a height of 2.04 m (roughly the height of a professional basketball player). i m/s

A child pulls a box of toys using a steady force of 10. N at an angle 60o from the horizontal. How much work is done by the child after the box moves with a distance of 4.0 m horizontally?

A force F (3x1+ 5yj), where F is in newtons and x and y are in meters, acts on an object as the object moves in the x direction from the origin to x = 5.36 m. Find the work W = = For done by the force on the o J Need Help? Read It Watch It

Two identical blocks, A and B, are initially at rest ona level, frictionless surface. At time t = t 1 , handsbegin to push the blocks toward each other as shownat right. Each hand exerts a constant horizontal forceof magnitude Fo . At time t = t 2 , each block has moveda distance d o from its initial position. is the work done on block A positive or negative? Block B? what is the net work?