1 set of questions
If a boy takes as much time in running 10 m as a car takes in covering 25 m, the distance covered by the boy during the time the car covers 1 km. is:
400 m
40 m
250 m
650 m
400 m
If a man covers 10.2 km. in 3 hours, the distance covered by him in 5 hours is :
18 km
15 km
16 km
17 km
17 km
Rate of change of displacement is called
Speed
Velocity
acceleration
deceleration
Velocity
A train moving with a uniform speed of 54 kmph . What is its speed in m/s?
15 m/s
1.5 m/s
9 m/s
90 m/s
15 m/s
A theft is reported to a policeman. The thief starts running and the policeman chases him. When the policeman starts chasing, the thief was at a distance of 250 metre. The thief and the policeman run at the speed of 8 km/h and 9 km/h respectively. Find the time the policeman will take to catch the thief.
10 minutes
15 hours
15 sec
15 minutes
15 minutes
Two trains start at the same time from Vijayawada and Madras and proceed towards each other at 16 km/hr and 21 km/hr respectively. When they meet, it is found that one train has travelled 60 km more than the other. The distance between the two stations is:
445 km
444 km
440 km
450 km
444 km
A man goes uphill with an average speed of 35 km/hr and comes down with an average speed of 45 km/hr. The distance travelled in both the cases being the same, the average speed for the entire journey is:
38(3/8) km/hr
39(3/8) km/hr
40 km/hr
None of these
39(3/8) km/hr
A man travels a distance of 20 km from his home to office, and 10 km towards his house back. Then the displacement covered by the man in the whole trip is
30 km
zero km
10 km
50 km
10 km
A man travels a distance of 20 km from his home to office, and 10 km towards his house back. Then the displacement covered by the man in the whole trip is
30 km
zero km
10 km
50 km
6 km
Buses take 12 hr to cover the distance of 120 km between A and B. A bus starts from point A at 8.00 a.m. and another bus starts from point B at 10.00 a.m. on the same day.
When do the two buses meet?
They will never meet
the buses will meet at 3 a.m
the buses will meet at 4 p.m
The buses will meet at 3 p.m
The buses will meet at 3 p.m
A train moving with a uniform speed of 54 kmph. What is its speed in m/s?
15 m/s
A scalar quantity has ______________?
Magnitude only
When an object undergoes acceleration ________
A force always acting on it
A truck covers 40 km with an average speed of 80km/h. Then it travels another 40 km with
an average speed of 40 km/h. The average speed of the truck for the total distanced covered is: ______
53 km/h
The SI unit of retardation is ________
ms-2
A car starts from city A and it travels 50 km in a straight line to city B. Immediately it turns around, and returns to city A. It took 2 hours for this round trip. The average speed of the car for this round trip is: ______
50 km/h
The equation v = u + at gives information as _______
Velocity is a function of time.
Which of the following can determine the acceleration of a moving object?
Slope of velocity-time graph
A body is projected up with an initial velocity u m/s. It goes up to a height h metres in t seconds time. Then it comes back at the point of projection. Considering negligible air resistance, which of the following statement is true?
The displacement is zero
A car accelerates at 1.5 m/s2 in a straight road. How much is the increase in velocity in 4s?
6 m/s
A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is ________
30 km
Rate of change of displacement is called _______
Velocity
Acceleration is a vector quantity, which indicates that its value ________
Can be positive, negative or zero
A player moves along the boundary of a square ground of side 50 m in 200 sec.The magnitude of displacement of the farmer at the end of 11 minutes 40 seconds from his initial position is ___________
50√2 m
An object travels 40m in 5 sec and then another 80m in 5 sec. What is the average speed of the object?
12 m/s