A car accelerates from rest at constant rate for first 10s and covers a distance x.
A car accelerates from rest at constant rate for first 10s and covers a distance x. It covers a distance…
7 years ago
Easy
The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration? Options (a) 2a₂ / 3 (b) - 2a₂ /…
7 years ago
The momentum of a body is increased by 20%.The percentage increases in kinetic energy
The momentum of a body is increased by 20%.The percentage increases in kinetic energy is Options (a) 54 % (b)…
7 years ago
The ratio of the dimensions of planck’s constant and that of the moment of inertia is
The ratio of the dimensions of Planck's constant and that of the moment of inertia is the dimensions of Options (a)…
7 years ago
What will be the ratio of the distance moved by a freely falling body from rest in 4th
What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th…
7 years ago
The value of n so that vectors 2i+3j-2k, 5i+nj+k and -i+2j+3k may be coplanar,will be
The value of n so that vectors 2i+3j-2k, 5i+nj+k and -i+2j+3k may be coplanar,will be Options (a) 18 (b) 28…
7 years ago
If A=3i+4j and B=7i+24j the vector having the same magnitude as B and parallel to A is
If A=3i+4j and B=7i+24j the vector having the same magnitude as B and parallel to A is Options (a) 5i+20j…
7 years ago
The distance travelled by a particle starting from rest and moving with an acceleration
The distance travelled by a particle starting from rest and moving with an acceleration (4/3)ms⁻², in the 3rd second is…
7 years ago
A particle has initial velocity (2i⃗+3j⃗) and acceleration (0.3i⃗+0.2j⃗). The magnitude
A particle has initial velocity (2i⃗+3j⃗) and acceleration (0.3i⃗+0.2j⃗). The magnitude of velocity after 10 seconds will be: Options (a)…
7 years ago
If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
If force(F),velocity(v) and time(T) are taken as fundamental units, then the dimensions of mass are Options (a) [FvT⁻¹] (b) [FvT⁻²]…
7 years ago