a 10kg mass is suspending from two spring scales( so 1 spring scale is attached to another and the..

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Question

a 10kg mass is suspending from two spring scales( so 1 spring scale is attached to another and the 10kg is on the 2nd one, that is attached to the 1st one) that read in kg, each of which has negligible weight thus:
-top scale with read 0, lower scale will read 10kg
-lower scale read 0, top scale with read 10kg
-each scale will read 5kg
-each scale will read 10kg
-each will show between 1-10kg,such that the sum will =10kg.However, exact readings cannot be deter. w/o more info.
throw a ball. Air resistance is negligible. Which of the following functions change with time as the ball flies through the air?
-only position of ball
-only velocity of ball
-only accel. of the ball
-position and velocity of ball
-position, velocity, and accel of ball
Driving 65 mph. Traveling north along straight highway. What could you do to give car nonzero acceleration?
-press brake pedal
-turn steering wheel
-either press the gas or brake pedal
-either press gas or brake pedal or turn steering wheel

 

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