Q. 144.4( 114 Votes )

A stone is releas

Answer :

Given,

Initial velocity, u = 0


Final velocity, v =?


Acceleration due to gravity, g = 9.8 m/s2


Height, h = 19.6 m


We know that,


v2 = u2 + 2gh


= (0)2 + 2 × 9.8 × 19.6


= 19.6 × 19.6


= (19.6)2


= 19.6 m/s


Therefore, its final velocity just before touching the ground is 19.6 m/s.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Variation in g with Rotation of EarthVariation in g with Rotation of EarthVariation in g with Rotation of Earth42 mins
Law of GravitationLaw of GravitationLaw of Gravitation40 mins
Variation in g due to Height and DepthVariation in g due to Height and DepthVariation in g due to Height and Depth33 mins
Circular MotionCircular MotionCircular Motion37 mins
Satellite MotionSatellite MotionSatellite Motion45 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Identical packetsNCERT Science - Exemplar

Two objects of diLakhmir Singh & Manjit Kaur - Physics