What is the weight (in
Newtons) of a 12 kg dog?
A trampoline accelerates a
50 kg jumper upward with...

Question

What is the weight (in
Newtons) of a 12 kg dog?
A trampoline accelerates a
50 kg jumper upward with an acceleration of 2 m/s^2.
What is the weight of the
jumper?
What is the force of the
trampoline on her feet while it is pushing her upward? (700N)
What is the net force
acting on her (in Newtons) while she is off of the trampoline and in the air?
When the trampoline pushes
her upward, which is greater:
A. The force of the
trampoline pushing up on her legs
B. The force of her legs
pushing down on the trampoline
When she is in the air,
Earth's gravity pulls her down. What is the other force in the Newton's
third law pair?

Robert · Accepted Answer

In the problems below, g = 9.81m/s2 
Weight of a 12kg dog = 12*9.81 = 117.72N 
Weight of the jumper = 50*9.81 =490.5N 
Force exerted by trampoline = F 
Force acting on her while on air = ma = 50*2 = 100N 
F – weight = ma 
 F – 490.5 = 100 
 F = 590.5N 
When the trampoline pushes her upward,

What is the weight (in Newtons) of a 12 kg dog? A trampoline accelerates a 50 kg jumper upward with an acceleration of 2 m/s^2. What is the weight of the jumper? What is the force of the trampoline on...

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