Q1 a 430g block slides along a frictionless surface at a

Reference no: EM13354926

Q1. A 430g block slides along a frictionless surface at a speed of 0.35 m/s. it runs into a horizontal massless spring with spring constant 47 N/m that extends outward from a wall. It compresses the spring, and then is pushed back in the opposite direction by the spring, eventually losing contact with the spring. The amount of time (in s) that the block stays in contact with the spring is?

Q2. You are driving to grocery store at 15 m/s .You is 140 m from an intersection when the traffic light turns red. Suppose that your reaction time is 0.70 s. and that your car brakes with constant acceleration.

How far are you from the intersection while you begin to apply the brakes?

Reference no: EM13354926

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