A body is moving with uniform velocity of 50 km h-1, the force required to keep the body in motion in SI unit is
(A) zero
(B) 10
(C) 25
(D) 50
1 Answers
Talk Doctor Online in Bissoy App
What is the difference between uniform and non-uniform motion?
A body is said to have uniform motion if it covers equal distances in equal intervals of time. A body is said to have non-uniform motion if it covers unequal distances...
2 Answers 1 views
Distinguish between uniform rectilinear motion and nonuniform rectilinear motion.
No. Uniformly rectilinear motion Non-uniform rectilinear motion i. The object is moving with constant velocity. The object is moving with variable velocity. ii. The average and instantaneous velocities are same. The average and instantaneous velocities are different. iii. The average...
2 Answers 1 views
In projectile motion, vertical motion and horizontal motion are dependent of each other. Yes or No? Justify your answer.
No. In projectile motion, the horizontal and vertical motion are independent of each other because both motions don’t affect each other.
2 Answers 1 views
A 150 m long train is moving in north direction with a velocity of 5m/s and a parrot is also moving in north direction with a velocity of 10 m/s, then
Correct Answer - (i)`30sec (ii) 300m
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
Define Uniform Circular motion. Why is it called a periodic motion ?
Uniform circular motion, motion of a particle moving at a constant speed on a circle. In the Figure, the velocity vector v of the particle is constant in magnitude, but...
2 Answers 1 views
Both average velocity and average instantaneous velocity are equal when a body is moving with
A) uniform velocity in same direction
2 Answers 1 views
A body is moving with initial velocity 30 m/s. After certain time it acquires velocity of 40 m/s, then the velocity in middle of its journey is
Correct option is A) 25√2
2 Answers 2 views
The statement: “An object in motion will remain in same motion as long as no external force is applied on it” is given by
Correct option is A) Galileo
2 Answers 1 views