Question 1 :
A body executing uniform circular motion has at any instant its velocity vector and acceleration vector

Question 2 :
A boy can throw a stone up to a maximum height of {tex} 10 \mathrm { m } {/tex}. The maximum horizontal distance that the boy can throw the same stone up to will be

Question 3 :
A wheel completes 2000 revolutions to cover the 9.5 km distance, then the diameter of the wheel is

Question 4 :
Suppose there is still air. Now a stone, a piece of paper and a coconut are dropped from a height. Which one of the things will fall first?

Question 5 :
The acceleration of a body projected upwards with a certain velocity is

Question 6 :
If a unit vector is represented by {tex} 0.5 \hat { i } + 0.8 \hat { j } + c \hat { k } , {/tex} the value of {tex} c {/tex} is

Question 7 :
A body is moving with a constant speed {tex} v {/tex} in a circle of radius {tex} r {/tex}. Its angular acceleration is

Question 8 :
The resultant of two forces of magnitudes {tex} 5 \mathrm { N } {/tex} and {tex} 10 \mathrm { N } {/tex} cannot be

Question 9 :
Let {tex} \vec { a } {/tex} and {tex} \vec { b } {/tex} be two unit vectors. If the vectors {tex} \vec { c } = \hat { a } + 2 \hat { b } {/tex} and {tex} \vec { d } = 5 \hat { a } - 4 \hat { b } {/tex} are perpendicular to each other, then the angle between {tex} \hat { a } {/tex} and {tex} \hat { b } {/tex} is:

Question 10 :
A cricketer hits a sixer.The cricket ball moves up with a velocityof $2 m s^{-1}$ and falls down. Its initial velocity while falling down willbe<br/>

Question 12 :
The area o the parallelogram represented by the vectors. <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e97fff74e70da2c08cb357c">  and <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e97fff7cf5ae23387f292f5">  is

Question 13 :
A body projected at an angle with the horizontal has a range {tex} 300 \mathrm { m } {/tex}. If the time of flight is {tex} 6 \mathrm { s } {/tex}, then the horizontal component of velocity is

Question 14 :
A stone dropped from the roof of a building takes 4 s to reach the ground. The height of the building is.

Question 15 :
Two stones are dropped from the top of a tower at half a second apart. The time after dropping the first stone at which the distance between the two stones is 20 m is $(g = 10 ms^{-2})$

Question 16 :
A ball is released from the top of a height $h$. It takes time $T$ to reach the ground. What is the position of the ball (from ground) after time $\frac{T}{3}$

Question 18 :
A body falls from a height $h=200\ m$.The ratio of distance travelled in each $2 sec$ during $t=0$ to $t=6\ sec$ of the journey is

Question 19 :
A body projected vertically upwards with a velocity u return to the starting point in 4second .If $g=10m^{-2}$ the value of u is $(m/s)$:-

Question 20 :
Two forces of magnitudes {tex} 8 \mathrm { N } {/tex} and {tex} 15 \mathrm { N } {/tex} act at a point. If the resultant force is {tex} 17 \mathrm { N } , {/tex} the angle between the forces has to be