Question 2 :
The force required to overcome the friction of a moving body and keep it moving with the same speed is called ______.

Question 4 :
In an air collision between an aeroplane and a bird, the force experienced by the bird as compared to that of the aeroplane is

Question 5 :
A block of mass {tex} 4 \mathrm { kg } {/tex} is suspended through two light spring balances A and B. Then {tex} \mathrm { A } {/tex} and {tex} \mathrm { B } {/tex} will read respectively:<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e101cdade596850506e36ba"><br>

Question 7 :
The force required to stop a car of mass {tex} 800 \mathrm { kg } {/tex}, moving at a speed of {tex} 20 \mathrm { ms } ^ { - 1 } {/tex} over a distance of {tex} 25 \mathrm { m } {/tex} in {tex} 2.5 \mathrm { sec } {/tex} is

Question 8 :
A block of mass $1\ kg$ lies on a horizontal surface in a truck, the coefficient of static friction between the block and the surface is $0.6$. What is the force of friction on the block if the acceleration of the truck is $5\ m/s^{2}$ ?<br>(Take $g=10\ m/s^{2}$)

Question 9 :
A small body starts its motion on a friction surface from rest on an inclined plane. If $S_n$ is the distance travelled in tme $t=n-1$ to $t=n$ then the ratio of $S_n$ and $S_{n+1}$will be:

Question 10 :
A bullet of mass 0.05 kg moving with a speed of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e917b61313cbb7c3feadfc4"> enters a wooden block and is stopped after a distance of 0.40 m. The average resistive force exerted by the block on the bullet is