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A boy with a mass of 50kg is sitting on a seesaw. He is sitting 2m from the pivot. He has a friend who weighs 40kg, how far away from the pivot must she sit to balance the seesaw? (gravitational accelleration (g) = 10m/s2)

This is a question relating to turning forces, known as moments. For the seesaw to be balanced the moment caused by the 50kg boy must be equal and opposite to the moment caused by the 40kg girl. ...

SG
Answered by Sam G. Physics tutor
19015 Views

How do we use the subjunctive?

The subjunctive is a mood that is mostly used for expressing doubt, hope and talking about something that is not definite. It is based around a subjective idea rather than an objective one; meaning that i...

MC
1384 Views

If the complex number z = 5 + 4i, work out 1/z.

1/(5 + 4i) * (5 - 4i)/(5 - 4i) = (5 - 4i)/41

OG
2837 Views

Describe the process of therapeutic cloning.

Therapeutic cloning produces stem cells which are genetically identical to the parent cell. Nucleus is removed and discarded from the donor egg cell = enucleated egg. Nucleus is removed f...

OW
Answered by Ottilie W. Biology tutor
23000 Views

What is the definition of a moment?

A moment is the product of force and the perpendicular distance from the pivot to the line of action of the force.

OG
Answered by Odin G. Physics tutor
1978 Views

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