A paramedic drives an ambulance at a constant speed of on a straight street for ten city blocks. Because of heavy traffic, the driver slows to in 6.0 s and travels two more blocks. What was the average acceleration of the vehicle?
Answer to relevant QuestionsDuring liftoff, a hot-air balloon accelerates upward at a rate of 3.0 m/s2. The balloonist drops an object over the side of the gondola when the speed is 15 m/s. (a) What is the object’s acceleration after it is released ...A hockey puck sliding along the ice to the left hits the boards head-on with a speed of 35 m/s. As it reverses direction, it is in contact with the boards for 0.095 s, before rebounding at a slower speed of 11 m/s. ...A car traveling at is to stop on a 35-m-long shoulder of the road. (a) What is the required magnitude of the minimum acceleration? (b) How much time will elapse during this minimum deceleration until the car stops? An object moves in the + x-direction at a speed of 40 m/s. As it passes through the origin, it starts to experience a constant acceleration of 3.5 m/s2 in the – x-direction. (a) What will happen next? (1) The object will ...An object initially at rest experiences an acceleration of 1.5 m/s2 for 6.0 s and then travels at that constant velocity for another 8.0 s. What is the object’s average velocity over the 14-s interval?
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