What is the work done by the force 2xi + 3yj from 3,1 to 3,2?

A 58-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.

2. The same cart and hanging mass given above are released from rest. How far has the cart traveled by the time it reaches a speed of 1.00 m/s?

(10%) Problem 5: Suppose a 345-g kookaburra (a large kingfisher bird) picks up a 65-g snake and raises it 2.3 m from the ground to a branch. > A 50% Part (a) How much work, in joules, did the bird do on the snake? W = sin() cos() tan() 8 9 HOME cotan() asin() acos() E AL 5 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 3% deduction per hint. Hints remaining: Feedback: 2% deduction per feedback. A 50% Part (b) How much work, in joules, did it do to raise its own center of mass to the branch?