1.
2 A child of weight 500 N sits 2.0 m to the left of the centre of a 5.0-m-long uniformseesaw. The pivot is under the centre of gravity of the seesaw. A friend of weight300 N sits 2.0 m to the right of the centre. They find that the only way they canbalance the seesaw is if someone holds down the right-hand end of the seesaw.Calculate:
2.
a the moment of the child’s weight about the pivot
3.
b the moment of the friend’s weight about the pivot
4.
c the downward force that must be applied at the right-hand end of theseesaw.
Even simple questions like this I've struggled on. Maybe Im making it to hard for myself?
1.
2 A child of weight 500 N sits 2.0 m to the left of the centre of a 5.0-m-long uniformseesaw. The pivot is under the centre of gravity of the seesaw. A friend of weight300 N sits 2.0 m to the right of the centre. They find that the only way they canbalance the seesaw is if someone holds down the right-hand end of the seesaw.Calculate:
2.
a the moment of the child’s weight about the pivot
3.
b the moment of the friend’s weight about the pivot
4.
c the downward force that must be applied at the right-hand end of theseesaw.
Even simple questions like this I've struggled on. Maybe Im making it to hard for myself?