¿QUÉ TIPO DE MOVIMIENTO ES EL QUE REALIZA UN TREN QUE AVANZA A 100 km/h POR UN TRAMO RECTO? 1. MOVIMIENTO RECTILINEO UNIFORME

2. MOVIMIENTO RECTILÍNEO UNIFORMEMENTE ACELERADO

3. MOVIMIENTO CIRCULAR UNIFORME

4. TODAS SON CORRECTAS

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.