The vehicle accelerates horizontally from rest to 27.8 m s–1 in a time of 4.6 s. The mass of the vehicle is 360 kg and the rider has a mass of 82 kg. 1. Calculate the average acceleration during the 4.6 s time interval.

This question is testing your ability to recognise which equations to use from the formula sheet based on the variables provided. 

To start, write down the known variables in the SUVAT fromat:

S (distance travelled): ?

U (initial velocity): 0ms-1 (because it was initially at rest)

V (final velocity): 27.8ms-1

A (acceleration): ?

T (time): 4.6s

First we need to work out the acceleration. In this question we do not need to calculate the distance travelled.

Look through the formula sheet and find the formula that will allow you to calculate the acceleration (A) based on the variables that have been given to us.

A=(V-U)/T

Plug in the values:

A= (27.8-0)/4.6

A= 27.8/4.6

A= 6.04 ms-2

Always include unit in your answer and pay attention in case the question is looking for a specific number of significant figures.

ZA
Answered by Zaid A. Physics tutor

7100 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

A conical pendulum is a mass suspended from a point that traces out a horizontal circle. By balancing the weight with the tension in the string, determine the speed of the bob.


What does the photoelectric effect demonstrate?


A wire has length l, cross-sectional area a, resistivity p and resistance R. It is compressed to a third of its original length but its volume and resistivity are constant. Show its new resistance is R/9.


A 4 metre long bar rotates freely around a central pivot. 3 forces act upon it: 7N down, 2m to the left of the pivot; 8N up, 1m to the left of the pivot; 4N up, 1m to the right of the pivot. Apply one additional force to place the bar in equilibrium.


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 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences