MYTUTOR SUBJECT ANSWERS

549 views

A ball is thrown out of a window 18m off the ground. It is thrown horizontally at 0.5m/s. Show that it takes about 2s to reach the ground

Using the initial information we can see that the acceleration in the 'y' direction is equal to 'g', so from this we can work out the velocity in the 'y' direction 'V(y)' by simply integrating the acceleration with respect to time; so V(y) = 9.8t +c and as the ball is initially at rest c=0. By intergrating the velocity in the y direction V(y) we can then obtain the displacement in the y direction 'S(y)'. So S(y)=0.5*gt2+k. Now as we are taking the window as the origin k=0. So S(y)=0.5*gt2. When the ball hits the ground the displacement it 18m or S(y)=18. Using our formula for S(y), we can solve for t. t comes out to be 1.92 to 2 d.p, which is roughly 2.

Adam J. GCSE Maths tutor, A Level Maths tutor, GCSE Physics tutor, A ...

1 year ago

Answered by Adam, an A Level Physics tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

102 SUBJECT SPECIALISTS

£36 /hr

Henri F.

Degree: Aerospace Engineering PhD Spacecraft Control (Doctorate) - Bristol University

Subjects offered:Physics, Maths+ 4 more

Physics
Maths
Further Mathematics
Extended Project Qualification
.STEP.
.PAT.

“Aerospace Engineering PhD candidate in spacecraft control with 7 years of experience in tutoring.”

£20 /hr

Mabast H.

Degree: Physics (Bachelors) - Imperial College London University

Subjects offered:Physics, Maths+ 3 more

Physics
Maths
Further Mathematics
Chemistry
-Personal Statements-

“Undergraduate Physicist with lots of experience in teaching in different fields and age groups, looking to instil a passion for learning into students.”

MyTutor guarantee

£20 /hr

Katherine R.

Degree: Physics (Bachelors) - Durham University

Subjects offered:Physics

Physics

“I am a Natural Sciences student at Durham University who specialises in Physics so I love talking about all things to do with science! I hope in my tutorial you will enjoy talking with me about everything from stars and galaxies to th...”

About the author

£20 /hr

Adam J.

Degree: Maths and Physics (Masters) - Durham University

Subjects offered:Physics, Maths

Physics
Maths

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Posts by Adam

A ball is thrown out of a window 18m off the ground. It is thrown horizontally at 0.5m/s. Show that it takes about 2s to reach the ground

The shortest side of a triangle is 4.3m long. Two of the angles are 45.1 and 51.2 degrees respectively. Find the length of the longest side.

Other A Level Physics questions

A ball is hit horizontally at a height of 1.2 m and travels a horizontal distance of 5.0 m before reaching the ground. The ball is at rest when hit. Calculate the initial horizontal velocity given to the ball when it was hit.

What are the assumptions made when calculating values regarding an Ideal Gas?

Two identical uniform spheres each of radius R are placed in contact. The gravitational force between them is F. They are then separated until the force between them is one ninth of the magnitude. What is the distance between the surfaces of the spheres?

A given star has a peak emission wavelength of 60nm, lies 7.10*10^19m away and the intensity of its electromagnetic radiation reaching the Earth is 3.33*10^-8Wm^-2. Calculate the star's diameter

View A Level Physics tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok