English
Karnataka Board PUCPUC Science Class 11

You Are Travelling in a Car. the Driver Suddenly Applies the Brakes and You Are Pushed Forward. Why Does this Happen?

Advertisements
Advertisements

Question

You are travelling in a car. The driver suddenly applies the brakes and you are pushed forward. Why does this happen?

Short/Brief Note
Advertisements

Solution

We are pushed forward because of the inertia of motion, as our body opposes the sudden change.

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Newton's Laws of Motion - short answers [Page 76]

APPEARS IN

HC Verma Concepts of Physics Volume 1 and 2 [English]
Chapter 5 Newton's Laws of Motion
short answers | Q 5 | Page 76

RELATED QUESTIONS

Two masses 8 kg and 12 kg are connected at the two ends of a light, inextensible string that goes over a frictionless pulley. Find the acceleration of the masses, and the tension in the string when the masses are released.


A car accelerates on a horizontal road due to the force exerted by.


Two objects A and B are thrown upward simultaneously with the same speed. The mass of A is greater than that of B. Suppose the air exerts a constant and equal force of resistance on the two bodies.


The figure shows the displacement of a particle going along the X-axis as a function of time. The force acting on the particle is zero in the region


(a) AB
(b) BC
(c) CD
(d) DE


A man has fallen into a ditch of width d and two of his friends are slowly pulling him out using a light rope and two fixed pulleys as shown in the following figure. Show that the force (assumed equal for both the friends) exerted by each friend on the road increases as the man moves up. Find the force when the man is at a depth h.


Find the reading of the spring balance shown in the following figure. The elevator is going up with an acceleration g/10, the pulley and the string are light and the pulley is smooth.


In the following figure, m1 = 5 kg, m2 = 2 kg and F = 1 N. Find the acceleration of either block. Describe the motion of m1 if the string breaks but F continues to act.


In the previous problem, suppose m2 = 2.0 kg and m3 = 3.0 kg. What should be the mass m, so that it remains at rest?


Find the acceleration of the blocks A and B in the three situations shown in the following figure.


How can Newton's first law of motion be obtained from the second law of motion?


Use Newton's second law of motion to explain the following instance : 

A cricketer pulls his hands back while catching a fast moving cricket ball .


A force of 10 N acts on a body of mass 2 kg for 3 s, initially at rest. Calculate : The velocity acquired by the body


A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate : The magnitude of the force


How long will a stone take to fall to the ground from the top of a building 80 m high 


Why is it advantageous to turn before taking a long jump?


In the previous problem (5.3), the magnitude of the momentum transferred during the hit is ______.


Why does a child feel more pain when she falls down on a hard cement floor, than when she falls on the soft muddy ground in the garden?


Figure shows (x, t), (y, t ) diagram of a particle moving in 2-dimensions.


(a)


(b)

If the particle has a mass of 500 g, find the force (direction and magnitude) acting on the particle.


According to Newton's Second Law of Motion, what quantity is directly proportional to the applied force?


Why is catching a slow-moving ball easier than catching a fast-moving ball?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×