 Click to Chat

1800-1023-196

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
`        tell me the fourth equation of motion and meaning of each symbol occurring in it...if possible also tell the consequent equations of motion...`
8 years ago 419 Points
```							Dear Indrayani
v= u + at
s =( u + v ) t /2
s = ut + at2/2
v2 = u2 + 2as
The following are the variables used in these equations:
t is the length of the interval of time and measured in seconds.
u is the initial speed of the object or the speed at the beginning of the time interval, measured in ms-1.
v is the final speed of the object or the speed at the end of the time interval, measured in ms-1.
a is the acceleration of the object within the time interval t measured in ms-2.
s is the distance covered or the displacement of the object during the time interval t, measured in metres.
```
8 years ago
```							S=(u+v)t/2Derivation-We know that a=(v-u)/t and s=ut+(at^2)/2S=ut+((v-u)/t)t^2S=ut+(v-u)t/2Take t as commonS=t[2u+v-u]/2S=t(v+u)/2 Proved
```
3 years ago
```							we know that ( u + v )/2 is the average velocity in case of constant accelaration.we also know that average velocty into time is total displacement.now we have (u+v)/2*t=average velocity * twhich can also be written as (u+v)t/2=s
```
2 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Discuss with colleagues and IITians

View all Questions »  ### Course Features

• 728 Video Lectures
• Revision Notes
• Previous Year Papers
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Test paper with Video Solution  ### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions