KE acquired by a mass $m$ in travelling a certain distance $d$, starting from rest, under the action of a constant force $F$ is ..........
KE acquired by a mass $m$ in travelling a certain distance $d$, starting from rest, under the action of a constant force $F$ is ..........
- A
Directly proportional to $\sqrt{m}$
- B
Directly proportional to $m$
- C
Directly proportional to $\frac{1}{m}$
- D
None of these
Similar Questions
A body is projected from ground at an angle ${\theta _1}$ with the horizontal with kinetic energy $K$. What is the potential energy of the body, when the velocity makes an angle ${\theta _2}$ with the horizontal?
A body is projected from ground at an angle ${\theta _1}$ with the horizontal with kinetic energy $K$. What is the potential energy of the body, when the velocity makes an angle ${\theta _2}$ with the horizontal?
A $2\ kg$ object is floating at rest, acted upon by only force as indicated in figure. Find the total work done by the force in $3\ sec$ ..................... $\mathrm{J}$
A $2\ kg$ object is floating at rest, acted upon by only force as indicated in figure. Find the total work done by the force in $3\ sec$ ..................... $\mathrm{J}$
Explain the different forms of energy.
$(a)$ Heat Energy
$(b)$ Chemical Energy
$(c)$ Electrical Energy
Explain the different forms of energy.
$(a)$ Heat Energy
$(b)$ Chemical Energy
$(c)$ Electrical Energy
On complete combustion a litre of petrol gives off heat equivalent to $3\times 10^7\,J$. In a test drive, a car weighing $1200\,kg$ including the mass of driver, runs $15\,km$ per litre while moving with a uniform speed on a straight track. Assuming that friction offered by the road surface and air to be uniform, calculate the force of friction acting on the car during the test drive, if the efficiency of the car engine were $0.5$.
On complete combustion a litre of petrol gives off heat equivalent to $3\times 10^7\,J$. In a test drive, a car weighing $1200\,kg$ including the mass of driver, runs $15\,km$ per litre while moving with a uniform speed on a straight track. Assuming that friction offered by the road surface and air to be uniform, calculate the force of friction acting on the car during the test drive, if the efficiency of the car engine were $0.5$.
A number of identical cubical blocks of edge $'a'$ and mass $m$ are lying on a horizontal table. The work done on the blocks in arranging them in a column of height $(n + 1)a$ on the table is
A number of identical cubical blocks of edge $'a'$ and mass $m$ are lying on a horizontal table. The work done on the blocks in arranging them in a column of height $(n + 1)a$ on the table is