Question 2 :
An aeroplane flying horizontally with a speed of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e9801334e70da2c08cb3d53"> releases a bomb at a height of 490 m from the ground. When will the bomb strike the ground?
Question 3 :
A body of mass <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e97fed8cf5ae23387f28f3e"> moves in a circular path with uniform angular velocity. The motion of the body has constant
Question 4 :
If a body is projected with an angle <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e97fec8cf5ae23387f28f0c"> to the horizontal then
Question 5 :
A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of 2 <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e9801394e70da2c08cb3d9d"> . The centripetal force, is
Question 6 :
In an atom for the electron to revolve around the nucleus, the necessary centripetal force is obtained from the following force exerted by the nucleus on the electron
Question 7 :
The force required to keep a body in uniform circular motion is
Question 9 :
An electric fan has blades of length 30 cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is
Question 11 :
At the top of the trajectory of a projectile, the direction of its velocity and acceleration are
Question 13 :
In case of uniform circular motion which of the following physical quantity do not remain constant
Question 14 :
A body executing uniform circular motion has at any instant its velocity vector and acceleration vector
Question 15 :
A body is tied to one end of the string and whirled in a vertical circle, the physical quantity which remains constant is
Question 16 :
The time period of the second’s hand of a watch is
Question 17 :
A particle is moving in a circle of radius <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e97fedb4e70da2c08cb2db1"> with constant speed <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e97fefccf5ae23387f28fac"> , if radius is double then its centripetal force to keep the same speed should be
Question 18 :
A stone tied with string is rotated in a vertical circle. The minimum speed with which the string has to be rotated
Question 19 :
Which one of the following statements is not correct in a uniform circular motion
Question 20 :
A body of mass 0.4 kg is whirled in a vertical circle making 2rev/s. If the radius of the circle is 2m, then tension in the string when the body is at the top of the circle is
Question 21 :
A body is projected from the ground with a velocity {tex} 50 \mathrm { m } / \mathrm { s } {/tex} at an angle of {tex} 30 ^ { \circ } . {/tex} It crosses a wall after {tex}3 {/tex}sec. How far beyond the wall the stone will strike the ground? [take {tex} \left. \mathrm { g } = 10 \mathrm { m } / \mathrm { s } ^ { 2 } \right] {/tex}
Question 22 :
A body is projected from the ground with a velocity {tex} 50 \ \mathrm { m } / \mathrm { s } {/tex} at an angle of {tex} 30 ^ { \circ } . {/tex} It crosses a wall after {tex} 3\ \mathrm { sec } . {/tex} How far beyond the wall the stone will strike the ground? [take {tex} \left. \mathrm { g } = 10 \mathrm { m } / \mathrm { s } ^ { 2 } \right] {/tex}
Question 23 :
The time taken to reach the maximum height will be decreased by
Question 24 :
A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following
Question 25 :
The minimum number of non-zero non-collinear vectors required to produce a zero vector is<br>