1. What happened to the force of friction when you increased the
weight on the cart?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped