A space traveller weighs herself on Earth at a location where the acceleration due to gravity is 9.82 m/s² and finds a value of 543 N. What is her mass m? The traveller travels to a planet in a neighboring solar system. It is a long trip, but she somehow manages to maintain her physical condition by conscientious exercise and diet control. The acceleration due to gravity on this planet is 13.9 m/s². What are the traveller's weight w and mass m' on the planet? W = m = N m' = kg kg
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- Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the first 3.8 s after the elevator starts moving, then 930 N for the next 3.8 s. What is the elevator's speed 7.6 s after starting?A spring is fixed to a board so that its hanging from it vertically. A 10 kg mass is attached to the spring and the spring stretches downwards 0.2 meters. You take the same board, spring, and mass to the moon. The acceleration due to gravity on the moon is 1.625 m/s2. How far would the spring stretch on the moon?Four acrobats of mass 67.0 kg, 68.0 kg, 62.0 kg, and 55.0 kg form a human tower, with each acrobat standing on the shoulders of another acrobat. The 67.0-kg acrobat is at the bottom of the tower. (a) What is the normal force acting on the 67.0-kg acrobat? (Enter the magnitude only.) 2469.6 ✔N (b) If the area of each of the 67.0-kg acrobat's shoes is 500 cm2, what average pressure (not including atmospheric pressure) does the column of acrobats exert on the floor? 53686.96 X Your response differs from the correct answer by more than 100%. Pa (c) Will the pressure be the same if a different acrobat is on the bottom? Pressure will be the same since the total mass of acrobats remains the same
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