Q.1
##### A hunter aims his guns and fires a bullet directly at a monkey on a tree.At the instant bullet leaves the gun,the monkey drops. The bullet
• Misses to hit the monkey
• Hits the monkey
• cannot be said
• None of these
Q.2
##### what is wrong for a body having uniform circular motion?
• Speed of the body is constant
• Acceleration is directed towards the center
• Velocity and Acceleration vector are having an angle 45°
• none of the above
Q.3
##### which of the following is not a projectile motion
• A football thrown at an angle
• A bomb falling from the aircraft
• A parachutar falling from aero-plane
• None of these
Q.4
##### A football is kicked into the air at an angle of 30 °  with the horizontal. At the very top of the ball's path, its velocity is
• entirely horizontal
• both vertical and horizontal
• not enough information given to know.
• entirely vertical
Q.5
##### Which of the following is correct expression for Projectile?
• Range $R= \frac {2u_xu_y}{g}$
• Magnitude of velocity at height $h=\sqrt {u^2+2gh}$
• Time taken $T=\frac {2u_x}{g}$
• None of these
Q.6
##### The trajectory of a projectile in a vertical plane is given by $y=2x-4x^2$ where x and y are the horizontal and vertical distance Following statement are made about this motion STATEMENT A: The angle of projection is given by tan-12 STATEMENT B:The Range of the Projectile is .5 units
• A and B both are correct
• Only A is correct
• Only B is correct
• Both A and B are wrong
Q.7
##### Four statement are made about the projectile motion STATEMENT -1: Horizontal velocity remains same through out the motion STATEMENT -2: The trajectory is a parabola STATEMENT -3: Acceleration of the projectile is vertically upwards STATEMENT -4: Momentum remains constants through out the motion which one of the following is correct
• All the statement are correct
• Statement 1,2 and 4 are correct
• Statement 1,2 and 3 are correct
• Statement 2,3 and 4 are correct
Q.8
##### Which of the following statements are true?
• The time that a projectile is in the air is dependent upon the vertical component of the initial velocity.
• The vertical acceleration of a projectile is 0 m/s when it is at the peak of its trajectory.
• Horizontal velocity changes in the projectile motion
• none of the above
Q.9
##### which of the following is incorrect expression for three dimensional motion?
• $\mathbf{a}=\frac {d\mathbf{v}}{dt}=\frac {d^2x}{dt^2}\mathbf{i}+\frac {d^2y}{dt^2}\mathbf{j}+\frac {d^2z}{dt^2}\mathbf{k}$
• $\mathbf{a}=\mathbf{v} \frac {d\mathbf{v}}{d\mathbf{r}}$
• $\mathbf{v}=\frac {d\mathbf{r}}{dt}=\frac {dx}{dt}\mathbf{i} + \frac {dy}{dt}\mathbf{j}+\frac {dz}{dt}\mathbf{k}$
• None of these
Q.10
##### A ball is projected upward at a certain angle with the horizontal .which of the following statement is incorrect. At highest point
• velocity of the projectile is not zero
• acceleration of the projectile is zero
• velocity of the projectile is along the horizontal direction
• None of these
Q.11
##### Two bullets A and B are fired horizontally with speed $v$ and $2v$ respectively.which of the following is true
• Both will reach the ground in Same time
• Bullet with speed $2v$ will cover more horizontal distance on the ground
• B will reach the ground in less time then A
• A will reach the ground in less time then B
Q.12
##### A parachuter falls from an aero-plane moving with uniform horizontal velocity.Which of the following is false
• when he land on the surface,he will be just below the aero-plane
• A person sitting in the aeroplane will see the parachuter going vertically downward
• when he land on the surface,he would left behind the aeroplane
• none of these
Q.13
##### The two vectors X and Y are of same length 5 units each. What is the range for the length of addition of these two vectors?
• (0,10)
• (0,5)
• None of these
Q.14
##### which of these operations are valid in vectors
• Addition of vector with scalar
• A vector quantity in the denominator of the expression
• None of these
Q.15
• A + B
• A-B
• A X B
• A.B
Q.16
##### Vector X and Y are given as X=i+j+k ,Y=i-j-k Which of these are not true?
• $X \times Y = 0$
• $X.Y=-1$
• $2X=2i+2j+2k$
• None of these
Q.17
• True
• False
Q.18
• Velocity
• Work
• Force
• Displacement
Q.19
##### Which is of these is correct?
• $A + B$
• $A - B= B -A$
• $A \times B=B \times A$
• None of these
Q.20
##### A and B are vector quantities .Which of these will be correct equation?
• $\frac {d}{dt}( A.B) = A. \frac {dB}{dt} + \frac {dA}{dt} .B$
• $\frac {d}{dt}( A \times B) = A \times \frac {dB}{dt} + \frac {dA}{dt} \times B$
• $A.A=|A|^2$
• All the above