badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

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

Please check your email for login details.
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
Menu
Grade: 11

                        

A 2m wide truck is moving with a velocity of 10m/s along a straight road of width 2m. A man starts crossing the road with uniform speed V across the road when the truck is 4m away. The minimum value of V to cross the road safely is ?

4 years ago

Answers : (1)

Shaswata Biswas
132 Points
							Let the man crosses the road in time t.
Distance to be covered, V.t = 2 m
=> t = 2/V s
Now velocity of the truck is 10 m/s.
So, distance travelled in time = 10.t
Now, for safe crossing, 10t\leq 4 m
\implies 10 \times \frac{2}{V} \leq 4
\implies V \geq 5 m/s
So, the minimum reqiured velocity of the man is 5 m/s.
THANKS
4 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


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


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details