Can someone tell me how to figure this out. Fido weighs 120N & carries Trixie who weighs 40N on her back. The support force on fidos feet is. 160n - 40n - 120n -more than 160n
just remember that weight is a force that acts down. In this case you would add both of the weights.
120n + 40n = 160 n
To figure out the support force on Fido's feet, we can use Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.
In this scenario, Fido and Trixie are being treated as a system. Since both Fido and Trixie are vertically upward forces (against gravity), the support force on Fido's feet will be equal in magnitude and opposite in direction to the total weight of Fido and Trixie.
To calculate the total weight, we add the individual weights of Fido and Trixie:
Fido's weight = 120N
Trixie's weight = 40N
Total weight = Fido's weight + Trixie's weight
Total weight = 120N + 40N
Total weight = 160N
Therefore, the support force on Fido's feet is 160N, as the total weight of Fido and Trixie is 160N.
If you select the option "more than 160N" from the given choices, it would be incorrect based on the calculations above.