1.a car moves with constant speed of 10 m/s in a circular path of radius 10 m. the mass of the car is 1000 kg. who or what is providing the required centripetal force for the car ? how much is it ?
2. the bob of the pendulum of length 1m has mass 100g and a speed of 1.4 m/s at the lowest point in its path. find the tension in the string at this moment.