top of the window, Physics

Assignment Help:

A stone drops from the edge of the roof. It passes the window 2 m high in 0.1s . How far is the roof above the top of the window?

Solution)

Height of the window (h) = 2m
Acceleration due to gravity g = 9.8 m/s2
Time taken (t) = 0.1 s
The velocity of the stone when it reaches the top of the window is to be calculated.

Applying the II equation of motion,

h=ut+1/2 at^2

2=0.1u+0.049

0.1u=1.951

u= 19.51m/s

Thus, the velocity 19.51 m/s will be the final velocity of the stone when it is covering the distance between the roof and the window.
Initially the stone is at rest i.e., u = 0

v^2-u^2=2gh

(19.51)^2=19.6h

=> h= 19.42m

Distance between the roof and the window =19.42 m.


Related Discussions:- top of the window

What do you mean by additive nature of charges, Q. What do you mean by addi...

Q. What do you mean by additive nature of charges? Give an example. Additive nature of charge The entire electric charge of a system is equal to the algebraic sum of electric

Describe critical angle, With a neat and clean diagram illustrate in brief ...

With a neat and clean diagram illustrate in brief the TIR. Describe critical angle and mention the two conditions for TIR.

Problems regarding open organ pipes and closed organ pipes, a closed organ...

a closed organ pipe resonates with frequency 6hz and an open organ pipe resonates with frequency 12Hz. if the two organ pipes are joined to form a single organ pipe then it will re

Current and time? help!, If the current in a wire of a CD player is 14.0 mA...

If the current in a wire of a CD player is 14.0 mA, how long would it take for 1.90 C of charge to pass a point in this wire? Answer in units of s

Evaluate voltage drop across the load resistance, Q. A transistor is connec...

Q. A transistor is connected in CE configuration. The voltage drop across the load resistance ( Rc) 3 k is 6 V. Find the base current. The current gain α of the transistor is 0.97.

What are secondary cells, Q. What are secondary cells? Give an example? ...

Q. What are secondary cells? Give an example? i) They are rechargeable. ii) The chemical reactions which take place in secondary cells are reversible. iii) The active mat

How can we increase current sensitivity of a galvanometer, Q. How can we in...

Q. How can we increase the current sensitivity of a galvanometer? The current sensitivity of a galvanometer is able to be increased by (i) Rising the number of turns (ii

Semi-conductors, Semiconductor is solid material whose electrical conductiv...

Semiconductor is solid material whose electrical conductivity at room temperature lies between conductivity of a conductor and that of an insulator. At high temperatures its conduc

Give basic postulate of special theory of relativity, Q. Give basic postula...

Q. Give basic postulate of special theory of relativity? A plane-convex lenses L of large radius of curvature with its convexities is placed on a plane glass plate P. When ligh

Interference and diffraction, INTERFERENCE and DIFFRACTION: INTERFEREN...

INTERFERENCE and DIFFRACTION: INTERFERENCE: The physical effect of super position of waves from two sources vibrating with same frequency and amplitude is called the interfere

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd