×

#### Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

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

A stone is projected with a velocity 20√2 m/s at an angle of 45° to the horizontal .The average velocity of stone during the motion from starting point to its maximum height is
A stone is projected with a velocity 20√2 m/s at an angle of 45° to the horizontal .The average velocity of stone during the motion from starting point to its maximum height is


2 years ago

Khimraj
3007 Points
							average velocity = (total displacement)/(time taken)max height = u2cos245/2*g = 20 mHalf range = u2sin2*45/2*g = 40 mtime taken = 2usin45/g = 4 sectotal displacement = $\sqrt{20^{2} + 40^{2}} = 20\sqrt{5}$so average velovity = $20\sqrt{5}$/4 = $5\sqrt{5}$ m/sHope it clears. If you like answer then please approve it.

2 years ago
naman
30 Points
							 average velocity = (total displacement)/(time taken)max height = u2cos245/2*g = 20 mHalf range = u2sin2*45/2*g = 40 mTime half the time of flight that is 2 secondsAverage velocity equals to total displacement upon total time therefore average velocity equals to 10√5

2 years ago
SANJAY MODI
13 Points
							Initial velocity:$\vec{u}=ucos45^o\hat{i}+usin45^0\hat{j}=20\hat{i}+20\hat{j}m/s$Final velocity:$\vec{v}=ucos45^{o}\hat{i}=20\hat{i}m/s$Therefore average velocity:$\vec{v_{av}}=\frac{\vec{u}+\vec{v}}{2}$ as the motion is uniformly accelerated:Putting values:$\vec{v_{av}}=20\hat{i}+10\hat{j}$ m/sIn magnotude average velocity:$v_{av}=\sqrt{20^2+10^2}=10\sqrt{5}$  m/s

2 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Mechanics

View all Questions »

### Course Features

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

### Course Features

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