Physics-
General
Easy
Question
A rocket is fired upwards. Its engine explodes fully is 12s. The height reached by the rocket as calculated from its velocity-time graph is
- m
- m
- m
- m
The correct answer is: m
Height reached m=66m
Related Questions to study
physics-
In the relation P is pressure, Z is distance, k is Boltzmann constant and is the temperature. The dimensional formula of β b will be:
In the relation P is pressure, Z is distance, k is Boltzmann constant and is the temperature. The dimensional formula of β b will be:
physics-General
maths-
The number of values of k for which the system of equations has infinite number of solutions is
The number of values of k for which the system of equations has infinite number of solutions is
maths-General
maths-
The value of λ such that the system
has no solution is
The value of λ such that the system
has no solution is
maths-General
maths-
Let If AB is a scalar multiple of B, then
Let If AB is a scalar multiple of B, then
maths-General
chemistry-
An open tank is filled with Hg upto a height of 76cm. Find the pressure at the bottom of the tank and middle of the tank. (If atmospheric pressure is 1 atm) respectively are
An open tank is filled with Hg upto a height of 76cm. Find the pressure at the bottom of the tank and middle of the tank. (If atmospheric pressure is 1 atm) respectively are
chemistry-General
chemistry-
For one mole of a van der Waals gas when b=0 and T = 300 K, the PV vs 1/V plot is shown below. The value of ‘a’ (atmliter2 .mol–2) is
For one mole of a van der Waals gas when b=0 and T = 300 K, the PV vs 1/V plot is shown below. The value of ‘a’ (atmliter2 .mol–2) is
chemistry-General
physics-
In the equation The value of x is :
In the equation The value of x is :
physics-General
maths-
If then the value(s) of is are
If then the value(s) of is are
maths-General
physics-
From a high tower at time , one stone is dropped from rest and simultaneously another stone is projected vertically up with an initial velocity. The graph of the distance between the two stones, before either his the ground, plotted against time will be as
From a high tower at time , one stone is dropped from rest and simultaneously another stone is projected vertically up with an initial velocity. The graph of the distance between the two stones, before either his the ground, plotted against time will be as
physics-General
maths-
Let M and N be two 3×3 non- singular symmetric matrices such that MN NM .If denotes the transpose of the matrix P, then is equal to
Let M and N be two 3×3 non- singular symmetric matrices such that MN NM .If denotes the transpose of the matrix P, then is equal to
maths-General
maths-
If A is 3×3 non-singular matrix then
If A is 3×3 non-singular matrix then
maths-General
maths-
If cos3A + cos3B + cos3C =1 then one of the angles of ΔABC is
If cos3A + cos3B + cos3C =1 then one of the angles of ΔABC is
maths-General
maths-
Let points A(7, 5), B(2, 1), C(10, 3) the vertices of a ΔABC. I is incentre of ΔABC. E and D are points of contact of incircle and sides AC and BC of ΔABC respectively. If G is the intersection points of angle bisector of ΔB and line joining ED. Then angle between line AG and BG is
Let points A(7, 5), B(2, 1), C(10, 3) the vertices of a ΔABC. I is incentre of ΔABC. E and D are points of contact of incircle and sides AC and BC of ΔABC respectively. If G is the intersection points of angle bisector of ΔB and line joining ED. Then angle between line AG and BG is
maths-General
maths-
In a ΔABC as in given figure and find the ratio of
In a ΔABC as in given figure and find the ratio of
maths-General
maths-
If then =
If then =
maths-General