Steel has a density of 8030kg/m^3. Show that a steel ball with a diameter of 5cm weighs approximately 5N

Using Weight = mass*gravitational strength

Using: Mass = density * volume

Using Volume = (4/3)pir3

Radius = 2.5cm = 0.025m

Volume = (4/3)pi0.0253 = 0.00006544 m3 (to 4 siginificant figures)

Mass = 8030 * 0.00006544 = 0.5256 kg (to 4 significant figures)

Weight = 0.5256 * 9.81 = 5.155 N (to 4 signigicant figures)

5.155 is approximately 5, therefore weight of the steel ball is approximately 5N

SH
Answered by Sameh H. Physics tutor

11778 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

How do I convert between eV and J


How would you calculate the vertical and horizontal components of the velocity of an object with an initial velocity of 15m/s which is travelling upwards at an angle of 30 degrees to the horizontal?


How do I derive equations for Time of Flight and Range in Parabolic Motion?


Why is a pendulum with a bob of the same size but larger mass than another bob damped more lightly?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences