The driver of a car travelling at velocity $v$ suddenly see a broad wall in front of him at a distance $d$. He should
The driver of a car travelling at velocity $v$ suddenly see a broad wall in front of him at a distance $d$. He should
- [IIT 1977]
- A
Brake sharply
- B
Turn sharply
- C
$(a)$ and $(b)$ both
- D
None of the above
Similar Questions
Two cars $S_1$ and $S_2$ are moving in coplanar concentric circular tracks in the opposite sense with the periods of revolution $3 \,min$ and $24 \,min$, respectively. At time $t=0$, the cars are farthest apart. Then, the two cars will be
Two cars $S_1$ and $S_2$ are moving in coplanar concentric circular tracks in the opposite sense with the periods of revolution $3 \,min$ and $24 \,min$, respectively. At time $t=0$, the cars are farthest apart. Then, the two cars will be
- [KVPY 2017]
Figure below shows a body of mass $M$ moving with the uniform speed on a circular path of radius, $R$. What is the change in acceleration in going from ${P_1}$ to ${P_2}$
Figure below shows a body of mass $M$ moving with the uniform speed on a circular path of radius, $R$. What is the change in acceleration in going from ${P_1}$ to ${P_2}$
When a particle moves in a uniform circular motion. It has
When a particle moves in a uniform circular motion. It has
The angular speed of a fly wheel making $120$ revolutions/minute is
The angular speed of a fly wheel making $120$ revolutions/minute is
- [AIPMT 1995]
A particle of mass $200 \,g$ is moving in a circle of radius $2 \,m$. The particle is just 'looping the loop'. The speed of the particle and the tension in the string at highest point of the circular path are $\left(g=10 \,ms ^{-2}\right)$
A particle of mass $200 \,g$ is moving in a circle of radius $2 \,m$. The particle is just 'looping the loop'. The speed of the particle and the tension in the string at highest point of the circular path are $\left(g=10 \,ms ^{-2}\right)$