Physics-
General
Easy
Question
If a body of mass 
is carried by a lift moving with an upward acceleration 
, then the forces acting on the body are (i) the reaction 
on the floor of the lift upwards (ii) the weight 
of the body acting vertically downwards. The equation of motion will be given by
The correct answer is:
∵a=0→ Non Inertial frame
Also, for equation of motion, we need to make it inertial.
For this, we have to acceletare in opposite direction.
∵ Equation of motion is:R=mg+ma
Related Questions to study
Maths-
The equation of motion of a particle moving along a straight line is 
, where the units of s and t are cm and sec. The acceleration of the particle will be zero after
The equation of motion of a particle moving along a straight line is , where the units of s and t are cm and sec. The acceleration of the particle will be zero after
Maths-General
Chemistry-
Assertion : First law of thermodynamics is not adequate in predicting the direction of a process
Reason : Total energy of universe is constant.
Assertion : First law of thermodynamics is not adequate in predicting the direction of a process
Reason : Total energy of universe is constant.
Chemistry-General
biology
Which one of the following pairs is mismatched?
Which one of the following pairs is mismatched?
biologyGeneral
botany
Statement 1: Libriformfibres are true fibres.
Statement 2: Libriformfibres develop from non-functional tracheids by reduction.
Statement 1: Libriformfibres are true fibres.
Statement 2: Libriformfibres develop from non-functional tracheids by reduction.
botanyGeneral
botany
Statement 1: In collateral vascular bundles, the phloem is situated towards inner side.
Statement 2:In monocot stem, cambium is present.
Statement 1: In collateral vascular bundles, the phloem is situated towards inner side.
Statement 2:In monocot stem, cambium is present.
botanyGeneral
botany
Statement 1: Many organs of aquatic plants float in water.
Statement 2: Large air gaps are present in the collenchyma tissues of lotus leaf.
Statement 1: Many organs of aquatic plants float in water.
Statement 2: Large air gaps are present in the collenchyma tissues of lotus leaf.
botanyGeneral
botany
Statement 1: Apical and intercalary meristems contribute to the growth in length while the lateral meristems bring an increase in girth in maize.
Statement 2: Apical and intercalary meristems always increase the height of plants.
Statement 1: Apical and intercalary meristems contribute to the growth in length while the lateral meristems bring an increase in girth in maize.
Statement 2: Apical and intercalary meristems always increase the height of plants.
botanyGeneral
botany
Statement 1: All the endodermal cells of the root do not contain Casparian thickenings on their radial and transverse walls.
Statement 2: Passage cells are found in the root endodermis.
Statement 1: All the endodermal cells of the root do not contain Casparian thickenings on their radial and transverse walls.
Statement 2: Passage cells are found in the root endodermis.
botanyGeneral
botany
Statement 1: The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials.
Statement 2: The cells of the inactive region of the quiescent centre become active when the previous active initials get damaged.
Statement 1: The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials.
Statement 2: The cells of the inactive region of the quiescent centre become active when the previous active initials get damaged.
botanyGeneral
botany
Statement 1: In a vessel, septa among the adjoining cells get dissolved.
Statement 2: Companion cells are a component of phloem.
Statement 1: In a vessel, septa among the adjoining cells get dissolved.
Statement 2: Companion cells are a component of phloem.
botanyGeneral
botany
.…A… are structures present in the epidermis of leaves. They regulate process of transpiration and …B… exchange. It is composed of two bean-shaped cells known as …C… cells.
Choose the correct combination of A, B and C from the following options
.…A… are structures present in the epidermis of leaves. They regulate process of transpiration and …B… exchange. It is composed of two bean-shaped cells known as …C… cells.
Choose the correct combination of A, B and C from the following options
botanyGeneral
botany
In which of the following, there is no differentiation of bark, sapwood and heartwood?
In which of the following, there is no differentiation of bark, sapwood and heartwood?
botanyGeneral
botany
.Ground tissue does not include
I) epidermis
II) vascular bundle
III) sclerenchyma
IV) collenchyma
V) parenchyma
Select the right combination from the above given options
.Ground tissue does not include
I) epidermis
II) vascular bundle
III) sclerenchyma
IV) collenchyma
V) parenchyma
Select the right combination from the above given options
botanyGeneral
botany
.Continuous ring of cambium is formed by
.Continuous ring of cambium is formed by
botanyGeneral
botany
Phloem conducts food by
Phloem conducts food by
botanyGeneral
