Trisha works for a roofing company and needs to move shingles from the ground to the roof. She will use a crane to move the shingles. The simple machine in crane is pulley.
A pulley is a simple machine that consist of a wheel on an axle. An axle is used to provide support and to change the direction of motion.
So, she must use a crane which consists of a pulley.
A pulley is used to hoist or raise objects.
Other simple machines, such as an inclined plane or lever, would be impractical
repeating one exercise plan daily is boring.
It is nutrients you get from food
B. Decrease the force used to move the object.
Only ' A ' is always true.<em> (choice-1)</em>
' B ' is not true when you drop a red hot spoon into cold soup.
' C ' is not true when you drop a red hot marble into a cool swimming pool.