हिंदी

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

Advertisements
Advertisements

प्रश्न

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

एक पंक्ति में उत्तर
Advertisements

उत्तर

It is advantageous to run before taking a long jump because after running we get motion of inertia which helps in long jumping

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Laws of Motion - Exercise 3 [पृष्ठ १२९]

APPEARS IN

फ्रैंक Physics Part 1 [English] Class 9 ICSE
अध्याय 3 Laws of Motion
Exercise 3 | Q 20 | पृष्ठ १२९

संबंधित प्रश्न

An object is placed far away from all the objects that can exert force on it. A frame of reference is constructed by taking the origin and axes fixed in this object. Will the frame be necessarily inertial?


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.


In a TV picture tube, electrons are ejected from the cathode with negligible speed and they attain a velocity of 5 × 106 m/s in travelling one centimetre. Assuming straight-line motion, find the constant force exerted on the electrons. The mass of an electron is 9.1 × 10−31 kg.


Calculate the tension in the string shown in the following figure. The pulley and the string are light and all the surfaces are frictionless. Take g = 10 m/s2.


A tennis ball and a cricket ball , both are stationary. To start motion in them .


State the Newton's second law of motion. What information do you get from it?


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 velocity acquired by the body.


A bullet of mass 50 g moving with an initial velocity 100 m s-1 strikes a wooden block and comes to rest after penetrating a distance 2 cm in it. Calculate: (i) Initial momentum of the bullet, (ii) Final momentum of the bullet, (iii) Retardation caused by the wooden block and (iv) Resistive force exerted by the wooden block.


Name the physical quantity which equals the rate of change of linear momentum.


What do you mean by the conservation of momentum? Briefly, explain the collision between two bodies and the conservation of momentum.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×