An iron sphere of mass 30 , kg has the same d | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) When objects are dropped from a height,they undergo free fall under the influence of gravity.In the absence of air resistance,the acceleration of

Vedclass · Accepted Answer

acceleration

Vedclass · Answer

(C) When objects are dropped from a height,they undergo free fall under the influence of gravity.In the absence of air resistance,the acceleration of an object in free fall is equal to the acceleration due to gravity $(g)$,which is approximately $9.8 \, m/s^2$.This acceleration is independent of the mass,size,or material of the object.Since both spheres are dropped simultaneously from the same height,at any given point (including $10 \, m$ above the ground),they will have the same velocity and the same acceleration $(g)$.Potential energy $(PE = mgh)$ depends on mass,so it will be different for the two spheres.Momentum $(p = mv)$ depends on mass,so it will be different.Kinetic energy $(KE = 1/2 mv^2)$ depends on mass,so it will be different.Therefore,the only quantity that remains the same for both spheres is their acceleration.

An iron sphere of mass $30 \, kg$ has the same diameter as an aluminium sphere whose mass is $10.5 \, kg$. The spheres are dropped simultaneously from a cliff. When they are $10 \, m$ from the ground,they have the same:

Similar Questions

When a spaceship is two earth radii distant from the centre of the earth,its gravitational acceleration is: (in $, m s^{-2}$)

An object is thrown vertically upwards and rises to a height of $10 \, m$. Calculate:
$(i)$ the velocity with which the object was thrown upward and
$(ii)$ the time taken by the object to reach the highest point.

$A$ stone is dropped from the edge of a roof. It passes a window $2 \, m$ high in $0.1 \, s$. How far is the roof above the top of the window?

The weight of an object at the centre of the earth of radius $R$ is

If the earth stops rotating,the value of '$g$' at the equator will:

Vedclass Test Series

Exam Paper Generator

Online Exam Module