Physics
State four ways in which machines are useful to us?
Machines
219 Likes
Answer
Machines are useful to us in —
(a) Changing the point of application of effort to a convenient point.
(b) Lifting a heavy load by applying a less effort.
(c) Changing the direction of effort to a convenient direction.
(d) For obtaining a gain in speed.
Answered By
137 Likes
Related Questions
Give an example of each class of lever in a human body.
Complete the following sentences:
(a) Mechanical advantage = …………… × velocity ratio
(b) In class II lever, effort arm is …………… than the load arm.
(c) A pair of scissors is a …………… multiplier.
What is the purpose of a jack in lifting a car by it?
What do you understand by an ideal machine? How does it differ from a practical machine?