A child of mass 40 kg sits on the swing as shown, assume g= 10m/s2. The tension in each rope is:

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

What happens when a rubber rod is rubbed with a piece of fur?

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