A body moves with velocity $v,\,\,2v$ and $3v$ in the first, second and third, one third distance of path travelled. Its average speed is
- A$\left( {\frac{6}{{11}}} \right)\,v$
- B$\left( {\frac{12}{{11}}} \right)\,v$
- C$\left( {\frac{18}{{11}}} \right)\,v$
- D$\left( {\frac{36}{{11}}} \right)\,v$
Similar Questions
If magnitude of average speed and average velocity over an interval of time are same, then
The displacement-time graph for two particles $A$ and $B$ are straight lines inclined at angles of $30^o$ and $60^o$ with the time axis. The ratio of velocities of $V_A : V_B$ is
The displacement-time graph for two particles $A$ and $B$ are straight lines inclined at angles of $30^o$ and $60^o$ with the time axis. The ratio of velocities of $V_A : V_B$ is
A man walks on a straight road from his home to a market $2.5 \,km$ away with a speed of $5\, \,km/h$. Finding the market closed, he instantly turns and walks back home with a speed of $7.5 \,km/h$. The average speed of the man over the interval of time $0$ to $40 \,min$. is equal to
A very large number of balls are thrown vertically upwards in quick succession in such a way that the next ball is thrown when the previous one is at the maximum height. If the maximum height is $5\, m$, the number of balls thrown per minute is (take $g = 10\, ms^{-2}$) :-
A very large number of balls are thrown vertically upwards in quick succession in such a way that the next ball is thrown when the previous one is at the maximum height. If the maximum height is $5\, m$, the number of balls thrown per minute is (take $g = 10\, ms^{-2}$) :-