Physics · Foundation

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Newton's first lawRunning
Force cart. Drive motors engaged at 9 motors. Applied thrust 405 N, Total resistance 180 N. Currently applied thrust is over by 225 N.TUNINGMASSAPPLIED THRUSTTOTAL RESISTANCE9 MOTORS
t = 0.0s

Applied thrust

405N

Total resistance

180N

9 motors

Force cart. Drive motors engaged at 9 motors. Applied thrust 405 N, Total resistance 180 N. Currently applied thrust is over by 225 N.

What has to balance∑F=0\sum F = 0

What is happening

You arrive at a cable car stalled halfway across a gorge.

The car keeps drifting instead of holding station. Drag and cable friction pull backwards with 180 N, and each drive motor the operator engages pushes with 45 N.