On a distant planet an astronaut picks up a rock of a mass 5kg. on this planet the weight of the rock is 40N. If the astronaut exerts an upward force of 46.2N on the rock, what is its acceleration

Explanation:

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The work done is 3.0 Nm. We can us the equation Work = Force * Distance, where Force = 75.0 N, and distance is xf – xi = 3.00 cm - -1.00 cm = 4.00 cm. Convert centimeters to meters by moving the decimal place to the left by two places to get 0.04 m. Plug these values into the Work equation: Work = Force * Distance Work = 75.0 N * 0.04 m Work = 3.0 Nm