0

Guest

Courses New

Find the average force needed to accelerates a car weighing 500 kg from rest 72 km/hr in a distance of 25 m.

Find the average force needed to accelerates a car weighing 500 kg from rest 72 km/hr in a distance of 25 m.

Grade:12th pass

1 Answers

Mudit
67 Points
7 years ago
Given mass=500kg.    initial velocity(u)=0m/s      Final velocity(v)=72km/hr=72*1000/3600=20m/s    dist.(s)=25m
acceleration(a)=?
Using v2-u2=2as
400-0=2*a*25
400/50=a       or    a=8m/s2
Force=m*a=500*8=4000N
Plz approve if correct otherwise let me know.

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More