Question

• Moe, lary and curly push on a 752Kg boat that floats
next to dock. They each exert an 80.5N force parallel to
the dock
• (a)What is the acceleration of the boat if they all push in
same direction?Give both direction and magnitude
• (b) What are the magnitude and direction of the boats
acceleration if larry and curly push in the opposite
direction to Moe,s push?

Answer 1

when they push in the same direction, just add up all the forces to get F
Otherwise, subtract those forces pushing backwards.
Now recall that F = ma

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