Recent content by roberto cruz

Your roommate is working on his bicycle and has the bike upside down. He spins the 40cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. a. What is the pebble's speed? b. What is the pebble's acceleration? please help!!

Your roommate is working on his bicycle and has the bike upside down. He spins the 40cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. a. What is the pebble's speed? b. What is the pebble's acceleration? please help!!

Curling is a sport played with 20kg stones that slide across an ice surface. Suppose a curling stone sliding at 1.2m/s strikes another stone and comes to rest in 2.2m/s . Approximately how much force is there on the stone during the impact? a. 2.2×10^4 N b 1.1×10^5 N c. 2200 N d 1.1×10^4...