NEET Physics Motion In A Straight Line MCQs

⚡ Time Required :3 mins

🔄Ncert Concepts :Average Velocity, Displacement, Circular Motion

A body moves in a straight line for time $t_1$ with velocity $v_1$ and for time $t_2$ with velocity $v_2$ in the same direction. If the average velocity is equal to $(2v_1v_2)/(v_1+v_2)$ , then the condition relating $t_1$ and $t_2$ is:

$\frac{t_1}{t_2} = \frac{v_1}{v_2}$

$\frac{t_1}{t_2} = \frac{v_2}{v_1}$

$t_1 = t_2$

$t_1v_1 = t_2v_2^2$

Question Tags

⚡ Time Required :3 mins

🔄Ncert Concepts :Average Velocity, Displacement, Equations of Motion

A particle moves along a closed trajectory. Which of the following is always true?

Average speed is zero.

Average velocity is zero.

Average speed cannot be zero.

Average speed is equal to the magnitude of average velocity.

Question Tags

🎓 Ncert Level:Understanding

🔄Ncert Concepts :Average Speed, Average Velocity, Displacement, Distance

A particle undergoing simple harmonic motion has an amplitude $A$ and angular frequency $\omega$ . What is its average speed over one complete oscillation?

$A\omega$

$2A\omega$

$4A\omega/2\pi$

Zero

Question Tags

🔄Ncert Concepts :Average Speed, SHM, Oscillations

A car travels half the distance with a speed of $v_1$ and the other half with a speed of $v_2$ . What is its average speed for the entire journey?

$(v_1+v_2)/2$

$√(v_1v_2)$

$2v_1v_2/(v_1+v_2)$

$v_1v_2/(v_1+v_2)$

Question Tags

🔄Ncert Concepts :Average Speed, Kinematics

A particle moves along a spiral path given by $r = at$ , $heta = bt$ , where $a$ and $b$ are constants and $t$ is time. What is the magnitude of average velocity from $t=0$ to $t=T$ ?

a sqrt(1+b^2)

aT sqrt(1+b^2)

Question Tags

⚡ Time Required :3 mins

🔄Ncert Concepts :Average Velocity, Polar Coordinates, Displacement

A particle starts from rest and moves along a straight line with an acceleration given by $a = 6t - 4$ , where $a$ is in $m/s^2$ and $t$ is in seconds. At what time is the velocity of the particle zero after the start of motion?

2/3 seconds

4/3 seconds

1 second

3/2 seconds

Question Tags

🎯Topic:Acceleration And Horizontal Motion

🔄Ncert Concepts :Acceleration, Velocity, Calculus, Kinematics

Two balls are projected horizontally from the same height with different initial speeds. Neglecting air resistance, which statement is true about their times of flight?

The ball with the higher initial speed will land first.

The ball with the lower initial speed will land first.

Both balls will land at the same time.

The time of flight depends on the mass of the balls.

Question Tags

🎯Topic:Acceleration And Horizontal Motion

🎓 Ncert Level:Analyzing

⚡ Time Required :1 mins

🔄Ncert Concepts :Projectile Motion, Acceleration due to Gravity, Time of Flight

A projectile is launched at an angle $heta$ with the horizontal with an initial speed $u$ . If the horizontal range is $R$ and the maximum height reached is $H$ , what is the relationship between $R$ , $H$ , and $heta$ ?

$R = 2H an heta$

$R = H \cot heta$

$R = 4H \cot heta$

$R = 4H an heta$

Question Tags

🎯Topic:Acceleration And Horizontal Motion