- #1
N_L_
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My question is whether the FBDs I have for the following problem are correct or not:
A 320 kg homeless elephant pushes a 700 kg shopping cart. The coefficient of static friction between the feet of the elephant and the ground is 0.98. The elephant (and the cart) accelerate at 0.27 m/s^2. Assume the elephant is pushing hard (just before its feet start slipping).
In the figure the cart is on the left and the elephant is on the right.
In the FBD for the elephant I have Fg pointing down, Fn pointing up, the force of the elephant on the cart pointing left, the force of the cart on the elephant pointing right, and the force of friction pointing right.
In the FBD for the cart I have Fg pointing down, Fn pointing up, the force of the cart on the elephant pointing right, the force of the elephant on the cart pointing left, and the force of friction pointing right.
Correct? Incorrect? Not even close
A 320 kg homeless elephant pushes a 700 kg shopping cart. The coefficient of static friction between the feet of the elephant and the ground is 0.98. The elephant (and the cart) accelerate at 0.27 m/s^2. Assume the elephant is pushing hard (just before its feet start slipping).
In the figure the cart is on the left and the elephant is on the right.
In the FBD for the elephant I have Fg pointing down, Fn pointing up, the force of the elephant on the cart pointing left, the force of the cart on the elephant pointing right, and the force of friction pointing right.
In the FBD for the cart I have Fg pointing down, Fn pointing up, the force of the cart on the elephant pointing right, the force of the elephant on the cart pointing left, and the force of friction pointing right.
Correct? Incorrect? Not even close