×

#### 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 rocket is fired ,with an acceleration of 20m/sec2 for the first 1min.After its fuel is finished and it goes on rising up just like a free body .Up to which height will it rise?Also find its time it will take before falling on earth?(g=10m/sec2)
A rocket is fired ,with an acceleration of 20m/sec2 for the first 1min.After its fuel is finished and it goes on rising up just like a  free body .Up to which height will it rise?Also find its time it will take before falling on earth?(g=10m/sec2)

```
3 years ago

Arun
25768 Points
```							Velocity for 20m/s² accelrationV1= u + at= 0 + 20 x 1 60 =1200 m/sHeight = h = ut + 1/2 + 20 + 60²= 36000mVelocity for 10 m/s²v2 = v1 + gt'0 = 1200 - 10tt' = 120 sHeight for 10 m/s²h'= v1t' + 1/2gt'²= 1200 x 120 -1/2 x 10 x 120²= 72000mtotal height = h+h'= 36000 + 72000= 108000mTime taken h=1/2 gt²t = √2hg= √2 x 108000 x 10= 600√6 sec or =60 (3+√6)
```
3 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on General Physics

View all Questions »

### Course Features

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

### Course Features

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