A diver of mass 60kg stands on the end of a diving board (2m in length). Calculate the upward force exerted on the retaining spring which is 30cm from the start of the diving board.

Here we have a typical moments question. The start of the diving board is the pivot (draw a picture)To answer this question we need to know that sum of the clockwise moments must equal the sum of the anticlockwise moments (principle of moments) and we will need to know the equation: moment = force x perpendicular distance from the pivot, and the equationclockwise moments: moment from the man = (60 x 9.81*) * 2 anticlockwise moments: moment from the spring = upward force from spring * 0.3therefore: (60 x 9.81) * 2 = F * 0.3F = 3900N*9.81 is the gravitational field strength

Answered by Sophie A. Physics tutor

2907 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

The friction coefficient of Formula 1 car tyres are around 1.7 in dry weather. Assuming sufficient power from the engine, calculate the theoretical best 0-100 km/h acceleration time in seconds. (neglect downforce, g=9.81m/s^2)


Describe energy transformations in a oscillating pendulum, which undergoes simple harmonic motion. How this implies the velocity at critical (lowest and highest) points?


When light above the threshold frequency of a metal is shone on the metal, photoelectrons are emitted. If the power of the light halves, are the maximum kinetic energy of the photoelectrons and/or the number of photoelectrons altered, and if so, how?


How can I find out the Young's modulus of a material?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences