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
Physics
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
The dimension of 1/2ε₀E², where ε₀ is permittivity of free space and E is electric field
The dimension of 1/2ε₀E², where ε₀ is permittivity of free space and E is electric field, is: Options (a) ML²T⁻²…
7 years ago
If two vectors 2i+3j+k and -4i-6j-λk are parallel to each other, then the value of λ is
If two vectors 2i+3j+k and -4i-6j-λk are parallel to each other, then the value of λ is Options (a) 0…
7 years ago
At what angle should the two forces 2P and √2 P act,so that the resultant force is P√10?
At what angle should the two forces 2P and √2 P act,so that the resultant force is P√10? Options (a)…
7 years ago
A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle
A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle as compared to that of…
7 years ago
A body is rolling down an inclined plane.If KE of rotation is 40% of KE in a translatory
A body is rolling down an inclined plane. If KE of rotation is 40% of KE in a transitory state, then their…
7 years ago
Vectors A⃗, B⃗ and C⃗ are such that A⃗ . B⃗ = 0 and A⃗ . C⃗ = 0 Then the vector parallel
Vectors A⃗, B⃗ and C⃗ are such that A⃗ . B⃗ = 0 and A⃗ . C⃗ = 0 Then…
7 years ago
A moving neutron collides with a stationary α-particle.The fraction of the kinetic energy
A moving neutron collides with a stationary α-particle.The fraction of the kinetic energy lost by the neutron is Options (a)…
7 years ago
If force(F),length(L) and time(T) be considered fundamental units, then the units of mass
If force(F),length(L) and time(T) be considered fundamental units, then the units of mass will be Options (a) [FLT⁻²] (b) [FL⁻²T⁻¹]…
7 years ago