Question 14
A screw jack with a Tommy bar of length 12cm is used to raise a car through a vertical height of 25cm by turning the Tommy bar through 50 revolutions. Calculate the approximate velocity ratio of the jack [\(\pi = 3.142\)]
Objective
Question details
- Exam body
- WAEC
- Subject
- Physics
- Year
- 2001
- Question no.
- #14
- Type
- Objective
More from this paper
- Q10The time rate of change of momentum is
- Q11Which of the following statements about elastic collision is correct?
- Q12Electrical resistance is a property of an electrical energy to be converted into
- Q16A resistance thermometer has a resistance of 20\(\Omega\) at 0 o C and…
- Q17A given mass of an ideal gas has a pressure of 500Nm -2 at -13 o C. If its…
- Q18The volume of an ideal gas at a pressure of 77cmHg and temperature 60 o C is…