SlbeR person at the local grocery store has a job consis (1) picking up boxes of

Question

SlbeR person at the local grocery store has a job consis (1) picking up boxes of tomatoes from the stockroom flo (3) carrying the boxes to the tomato display at constant (5) lowering the boxes slowly to the floor During which of the five segments of the job does the st a. b. C. d. e. (1) only (1) and (2) (1), (2), (4), and (5) (1) and (5) (2) and (3) 4. shoot 2.00 kg packages up a 1.00-m high frictionless ramp into a truck, as the figure shows. The spring, constant is 439 N/m and the spring is compressed 31.0 cm. What is the speed of the package when it reaches the truck? A freight company uses a compressed spring to 1.0 m

Explanation / Answer

Here ,

let the speed of the package when it reaches the truck is v

Using conservation of energy

initial mechanical energy = final mechanical energy

0.50 * 439 * 0.31^2 = 0.50 * 2 * v^2 + 2 * 9.8 * 1

solving for v

v = 1.22 m/s

the speed of the package at the top is 1.22 m/s

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