Motion (1 Viewer)

Joined
Jun 26, 2016
Messages
57
Gender
Male
HSC
2018
Hi everyone thanks in advance!

A particle moves along a straight line and its acceleration when it is moving at velocity v m/s is numerically equal to a=-(100+v^2) m/s^2. Its initial speed is 10 m/s

1. Find the distance travelled before the particle comes to a rest

2. Find the time taken before the particle comes to rest
 

Mahan1

Member
Joined
Oct 16, 2016
Messages
87
Gender
Male
HSC
2014
Hi everyone thanks in advance!

A particle moves along a straight line and its acceleration when it is moving at velocity v m/s is numerically equal to a=-(100+v^2) m/s^2. Its initial speed is 10 m/s

1. Find the distance travelled before the particle comes to a rest

2. Find the time taken before the particle comes to rest


note


to get the distance:








since a < 0 and we are calculating the distance when the object comes into the rest then there is no back tracking therefore the total distance travelled is

Using the other equality for the acceleration:



where




 
Last edited:

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top