5s
10s
20s
40s
Correct answer is B
t = \(\frac{v - u}{a}\) = \(\frac{0 - 20}{-2}\) = 10s
The velocity ratio of a machine is 5 and its efficiency is 75%. What effort would be needed to lift ...
Which of the following statements about magnetic lines of force is not correct? ...
In the circuit above, The potential across each capacitor is 100V. The total energy stored in the tw...
The value of the series resistor required to convert the above galvanometer into a voltmeter with a ...
An electric pressing iron is connected to the mains using an insulated wire. wire becomes very hot. ...
The magnetic effect of a current-carrying coil is NOT utilized in the making of a/an ...
A radioactive substance has a half life of 20 days. What fraction of the original radioactive nuclei...
A quantity of ice at 10oC is heated until the temperature of the heating vessel is 90oC. Which of th...
Dewpoint is the temperature at which, water vapour in the atmosphere ...
The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car is 4m from the...
Data Interpretation Questions and Answers
Puzzles Questions and Answers
Quantitative Reasoning Questions and Answers
Abstract Reasoning Questions and Answers
Typing Speed and Accuracy Test
Numerical Reasoning Questions and Answers
Personality Test
Nigeria General Knowledge Questions and Answers
Logical Reasoning Questions and Answers
Spatial Reasoning Questions and Answers
Verbal Reasoning Questions and Answers
Microsoft Office Questions and Answers
Situational Judgement Questions and Answers
See all →