Part of eval main bdd945f six, agent version bdd945f
Q. A body of 5 kg is pushed by two forces at right angles to each other, 8 N and 6 N. How strongly does it accelerate, in m/s²? expects 2 m/s²
draft 24: failed in solution.rb, line 12 — NameError: two_forces_at_right_angles chooses a root of #<struct Physics::Pointing size=#<Physics::Whole:0x0000789597ee9008 @name=#<struct Physics::Instance quantity=:net_force, variable=:F_net, owner=:body, qualifiers={during: :pushed}, labels={body: "", pusher1: "p1", pusher2: "p2", pushed: ""}>, @written=#<struct Physics::Instance quantity=:net_force, variable=:F_net, owner=:body, qualifiers={during: :pushed}, labels={body: "", pusher1: "p1", pusher2: "p2", pushed: ""}>>>, which none of its laws name
Latest draft
question.rb1 question :two_forces_at_right_angles do2 kind :numerical3 describes "A body of mass %{mass} is pushed by two forces at right angles to each other, %{force1} and %{force2}. " \4 "%{acceleration}, in m/s2?"5 given mass: "5 kg"6 given force1: "8 N"7 given force2: "6 N"8 asks acceleration: "How strongly does it accelerate"9 end
solution.rb1 solve :two_forces_at_right_angles, using: NewtonsSecondLaw do2 objects :body, :pusher1, :pusher23 axes :x, :y4 5 body.goes(:pushed)6 7 take mass: body.mass8 take force1: body.force(by: pusher1, during: pushed).magnitude9 take force2: body.force(by: pusher2, during: pushed).magnitude10 11 deduce_from "two forces at right angles to each other", body.net_force(during: pushed).magnitude => sqrt(force1**2 + force2**2)12 deduce_from "two forces at right angles to each other", body.net_force(during: pushed).direction => :unknown13 14 acceleration = body.acceleration.magnitude15 answer acceleration:, in: "m/s2"16 17 conclusion "The two forces are perpendicular, so the resultant is their vector sum; Newton's second law gives the acceleration."18 end
round 24
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