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Jasper and Gemma are going to play on a teeter totter. Gemma gets on first. When Jasper gets on, Gemma moves into the air, but she does not move to the top.



Which statement could correctly explain the forces acting on the teeter totter? assume that Jasper and Gemma are the same distance from one another.

The forces are balanced because Jasper weighs the same as Gemma.
The forces are unbalanced because Jasper weighs the same as Gemma.
The forces are balanced because Jasper weighs more than Gemma.
The forces are unbalanced because Jasper weighs more than Gemma.

Sagot :

Answer:

Jasper weighs more than Gemma.

Explanation:

The correct statement to explain the forces acting on the teeter-totter is:

**The forces are unbalanced because Jasper weighs more than Gemma.**

Here’s the reasoning:

1. **Teeter-totter Mechanics**: For a teeter-totter to be in balance, the torque (rotational force) exerted by both individuals on either side of the pivot must be equal. Torque is calculated as the product of force (weight) and distance from the pivot.

2. **Jasper and Gemma’s Weights**: If Jasper's weight is greater than Gemma's, and they are positioned at the same distance from the pivot, Jasper will exert more torque than Gemma. This unbalanced torque will cause Gemma to rise into the air, but not necessarily to the top, indicating that Jasper’s side exerts a greater downward force.

Therefore, the forces are unbalanced because Jasper weighs more than Gemma, resulting in Gemma being lifted off the ground.