A flea jumps by exerting a force of 1.32 × 10-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 1.20 x 10-6 N on the flea. Find the direction and magnitude (in m/s2) of the acceleration of the flea if its mass is 6.0 x 10-7 kg. (Let us assume that F points to the right. We will consider this to be the +x direction and vertical to be the ty direction.) magnitude direction wind m/s² ° (measured clockwise from the vertical)

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”