When we move the block on the ramp, the friction force is the force which opposes its motion.
Explanation:
When we apply force in the forward direction, the block moves horizontally on the floor or ramp. The force which oppose the motion of the block is known as force of friction. When the block is at rest, static friction act upon it which prevent the block from movement but when the block start motion, this static friction replace by the kinetic friction which opposes the moving body and reduce the speed.
barb and Nancy start out 5 meters apart. Nancy is walking 1 m/sec in the direction indicated. what is barb's rate at the instant that Nancy has walked 4 meters, while they have remained 5 meters apart? the answer is 3
1. scientific theory is supported by lots of data and facts. 2. environment 3. science 4. natural resources 5. environmental science 6. hypothesis is an educated guess about how something works. 7. sustainability
