# Question

According to Newton’s laws of motion (which will be studied in Chapter 4), a frictionless incline should provide an acceleration of down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15.00-m very smooth incline in exactly 3.00 s. Is the incline frictionless?

## Answer to relevant Questions

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 ...A bullet traveling horizontally at a speed of 350 m/s hits a board perpendicular to its surface passes through and emerges on the other side at a speed of 210 m/s. If the board is 4.00 cm thick, how long does the bullet take ...A car accelerates horizontally from rest on a level road at a constant acceleration of 3.00 m/s2. Down the road, it passes through two photocells (“electric eyes” designated by 1 for the first one and 2 for the second ...A boy throws a stone straight upward with an initial speed of 15.0 m/s. What maximum height will the stone reach before falling back down? The acceleration due to gravity on the Moon is about one-sixth of that on the Earth. (a) If an object were dropped from the same height on the Moon and on the Earth, the time it would take to reach the surface on the Moon ...Post your question

0