Question
A car has to cover a distance of 240 km in 30 hours. If
it covers half of the journey in 3/5 th of the time, the speed to cover the remaining distance in the time left has to be:Solution
Total Distance = 240km Total Time = 30 hours He covers half of the Journey in 3/5th of the time = 30 × 3/5 = 18 hours Now remaining Distance = 240 – 120 = 120km Remaining time = 12 hours Speed to cover the distance of 120 km will be = 120/12 = 10km/hr
What happens to the gravitational force between two objects if the distance between them is doubled ?
Two charges +4μC and +9μC are separated by 60 cm. Where should a third charge be placed so that it experiences zero net force? (from +4μC charge)
Which of the following types of coal is called a brown coal among the following?
Which of the following gas is used in the preparation of the bleaching powder?
Which is the longest bone in the human body?
Which one of the following physical quantities is the same for molecules of all gases at a given temperature?
Consider the following three nuclear reactions:
Wh...
Which of the following vitamin contains Cobalt?
A particle is moving in a circular path with constant speed. Which of the following is true?
The phenomenon due to which the sky appears blue is
Relevant for Exams:
