Question 12
A wheel and axle is used to raise a weight of 600N with an effort of 300N. If the radii of the wheel and axle are 50cm and 10cm respectively, what is the efficiency of the system?
Objective
Question details
- Exam body
- OAU
- Subject
- Physics
- Year
- 2012/2013
- Question no.
- #12
- Type
- Objective
More from this paper
- Q8When a 2kg body is at a height 5m above the floor, its velocity is 4m/s. What is…
- Q9An airplane increases its speed from 36km/h to 360km/h in 20.0s. How far does it…
- Q10In the simple circuit shown in fig.l, E is a 24V battery. Calculate the current…
- Q14A particle is in equilibrium under the action of three forces. One force is 40N…
- Q15A hydraulic press works on the principle of transmission of
- Q16A cigarette lighter in a car is a resistor that, when activated, is connected…