Part 1
A motor cyclist is trying to jump across a path as shown by driving horizontally off a cliff A at a speed of 5ms^−1. Ignore air resistance and take g=10ms^−2. The speed with which he touches the cliff B is:
28
Oct
A motor cyclist is trying to jump across a path as shown by driving horizontally off a cliff A at a speed of 5ms^−1. Ignore air resistance and take g=10ms^−2. The speed with which he touches the cliff B is: A particle of mass 'm' at rest is acted upon by a force 'p' for [...]
A massless platform is kept on a light elastic spring as shown in figure. When a small stone of mass 0.1 kg is dropped on the pan from a height of 0.24 m, the spring compresses by 0.01m. From what height should the stone be dropped to cause a compression of 0.04m in the spring ?
28
Oct
A massless platform is kept on a light elastic spring as shown in figure. When a small stone of mass 0.1 kg is dropped on the pan from a height of 0.24 m, the spring compresses by 0.01m. From what height should the stone be dropped to cause a compression of 0.04m in the spring [...]
A body is allowed to fall freely under gravity from a height of 10m. If it looses 25% of its energy due to impact with the ground, then the maximum height it rises after one impact is ?
28
Oct
A body is allowed to fall freely under gravity from a height of 10m. If it looses 25% of its energy due to impact with the ground, then the maximum height it rises after one impact is ? A body is allowed to fall freely under gravity from a height of 10m. If it looses [...]
The potential energy of a 1kg particle free to move along the x- axis is given by V(x)=(x^4/4−x^2/2)J The total mechanical energy of the particle is 2J . Then , the maximum speed (in m/s) is
28
Oct
The potential energy of a 1kg particle free to move along the x- axis is given by V(x)=(x^4/4−x^2/2)J The total mechanical energy of the particle is 2J . Then , the maximum speed (in m/s) is the maximum speed (in m/s) is The potential energy of a 1kg particle free to move along the x- [...]
A particle in a certain conservative force field has a potential energy given by V=20xy/z. The force exerted on it is
28
Oct
A particle in a certain conservative force field has a potential energy given by V=20xy/z. The force exerted on it is A particle in a certain conservative force field has a potential energy given by V=20xy/z. The force exerted on it is October 28, 2020 Category: Chapter 6 - Work, Energy and Power , MTG [...]
A rod of mass m and length l is made to stand at an angle of 60^o with the vertical. Potential energy of the rod in this position is
28
Oct
A rod of mass m and length l is made to stand at an angle of 60^o with the vertical. Potential energy of the rod in this position is A rod of mass m and length l is made to stand at an angle of 60^o with the vertical. Potential energy of the rod in [...]
The potential energy of a conservative system is given by V(x)=(x^2 −3x) joule. Then its equilibrium position is at
28
Oct
The potential energy of a conservative system is given by V(x)=(x^2 −3x) joule. Then its equilibrium position is at The potential energy of a conservative system is given by V(x)=(x^2 −3x) joule. Then its equilibrium position is at October 28, 2020 Category: Chapter 6 - Work, Energy and Power , MTG NEET Physics , Part [...]
If two Spring A and B with spring constant 2K and k are stretched separately by the same suspended weight then the ratio between the work done in stretching A and B is
28
Oct
If two Spring A and B with spring constant 2K and k are stretched separately by the same suspended weight then the ratio between the work done in stretching A and B is If two Spring A and B with spring constant 2K and k are stretched separately by the same suspended weight then the [...]
A spring of spring constant 5×10^3N/m is stretched initially by 5 cm from the unstretched position. The work required to stretch it further by another 5 cm is .
28
Oct
A spring of spring constant 5×10^3N/m is stretched initially by 5 cm from the unstretched position. The work required to stretch it further by another 5 cm is . A spring of spring constant 5×10^3N/m is stretched initially by 5 cm from the unstretched position. The work required to stretch it further by another 5 [...]
A spring of force constant 800 N m^-1 has an extension of 5 cm. The work done in extending it from 5 cm to 15 cm is
28
Oct
A spring of force constant 800 N m^-1 has an extension of 5 cm. The work done in extending it from 5 cm to 15 cm is A spring of force constant 800 N m^-1 has an extension of 5 cm. The work done in extending it from 5 cm to 15 cm is October [...]