Speed of a body at any particular instance is known as …………….
A) velocity
B) average speed
C) instantaneous speed
D) none of these
1 Answers
Talk Doctor Online in Bissoy App
A man travels two-third part of his total distance with speed `v_(1)` and rest one-third part with speed `v_(2)`. Find out the average speed of the ma
Correct Answer - `(3v_(1)v_(2))/(v_(2)+2v_(1))
2 Answers 1 views
A constant force acting on a body of mass 3 kg changes its speed from 2 ms^-1 to 3.5 m/s in 25 s. The direction of motion of the body remains
Given: u = 2 ms-1, m = 3 kg, v = 3.5 m s-1, t = 25s To find: Force (F) Formula: F = ma Calculation: Since, v = u + at ∴ 3.5 =...
2 Answers 2 views
The state of atmospheric conditions over an area at a particular time is known as ………………..
correct option is D) weather
2 Answers 1 views
A body is projected vertically up from ground with a speed √(gh). The average speed of total motion is
B) \({\cfrac{\sqrt{gh}}{2}}\)
2 Answers 2 views
A car covers half the distance at a speed of 60 kmh^(-1) and the other half at a speed of 40 km h^(-1) The average speed of the car is
Correct option is B) 50 km h-1
2 Answers 1 views
The motion of a body with constant speed in circular path is known as ……………
C) uniform circular motion
2 Answers 1 views
The forces exerted by a charged body on another charged or uncharged body is known as
A) Electrostatic force
2 Answers 1 views
The arrangement of private instance variables and public methods ensures the principle of ……
(b) Data encapsulation
2 Answers 1 views
An instance of relational schema R (A, B, C) has distinct values of A including NULL values. Which one of the following is true?
(a) A is a candidate key
2 Answers 3 views
An aeroplane takes 1 hour less for a journey of 1200 km if its speed is increased by 100 km/hr from its usual speed. Find its usual speed.
Let usual speed of aeroplane be x km/hr. Given, distance =1200 km Time taken for journey of 1200 km `=(1200)/(x) "hours"" "(because "Time"="Distance"/"Speed")` When the speed is increased by 100...
2 Answers 1 views