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###### Question Aand C involve separate contextsYou walk 30 m north and then 20 m northwest. How far and in what direction do you need to walk to get back to where you started?You throw a ball directly at the ground with initial speed v The ball bounces and when you catch it; the speed is v/2 Deterine the magnitude of the change in velocity:A colleague of yours has calculated the position for an object with initial speed Vt to be the following finction of time: x(t) What are reasonable units for the qu

Question A and C involve separate contexts You walk 30 m north and then 20 m northwest. How far and in what direction do you need to walk to get back to where you started? You throw a ball directly at the ground with initial speed v The ball bounces and when you catch it; the speed is v/2 Deterine the magnitude of the change in velocity: A colleague of yours has calculated the position for an object with initial speed Vt to be the following finction of time: x(t) What are reasonable units for the quantity b?

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