Physic Help needed
1.You weigh 255 lb on Earth (4.448 N = 1 lb).
When you reach Alderon, you discover that
its gravity is 1.85 that of earth.
What is your weight on Alderon?
Answer in units of N
So for this is it just 255x4.448 then times 1.85?
2.A 10 kg block is pushed with a constant horizontal force of 20 N against a constant horizontal frictional force of 10 N.
What is the acceleration of the block?
would that be 1m/S^2?
3.Gravity on the surface of the moon is only
1/6 as strong as gravity on the Earth.
What is the weight of a 20 kg object on the
Earth? The acceleration of gravity is 10 m/s
2.Answer in units of N the answer was 200N. Then it asked me to find the weight object when it's on the moon which was 33.33333.
The last question was find the mass of the object which I thought it would be 33.3333=10M which would give me 3.3333 but the answer is wrong. Anyone know what I did wrong for this?
4. It show three position time graph. One is a diagonal line,one is going in a exponential line,and one is a horizontal line. Would the horizontal line be the one with total force of 0? And both the diagonal line and exponential line be the only two with increasing velocity?
Thanks for the help.
6 Comments • Newest first
Wish I can help you out more,but thats all I know.
[quote=demonko33]the last question only the exp graph is increasing and horizontal is with total force of 0?[/quote]
I see.
Anyone know if the other questions are right/the right answer?
the last question only the exp graph is increasing and horizontal is with total force of 0?
[quote=radkai]Diagonal doesn't have increasing velocity.[/quote]
oh right.
Diagonal doesn't have increasing velocity.
1. Convert lbs to Newtons. Then solve for the mass of the object. Acceleration due to gravity there is 1.85x that of acceleration due to gravity on Earth so solve for acceleration due to gravity of Alderon or whatever. Since weight is mg take the mass of the object and multiply by acceleration due to gravity of Alderon.
Too lazy to look at the rest.