Click to Chat

1800-2000-838

+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
sachin singh Grade: 12
`        A car is initially traveling due north at 23 m/s. (a) Find the velocity of the car after 4 s if its acceleration is due north.  (b) Find the velocity of the car after 4 s if its acceleration is instead due south.`
7 years ago

35 Points
```										a) Given a = 2 m/s2 northward; u = 23 m/s northward; t = 4s
Vectorially, a = 2 j; u = 23 j; t = 4s
Using v = u + at ,
v = 23 j + (2 j) * 4 => v = 31 j or v = 31 m/s northward
b) Given a = 2 m/s2 southward; u = 23m/s northward; t = 4s
Vectorially, a = 2 (-j); u = 23 j; t = 4s
using v = u + at,
?v = 23 j + 2 (-j) * 4 => v = 15 j or v = 15 m/s northward
Here Bold Letters represent vectorial form
```
7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Other Related Questions on General Physics

View all Questions »
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details
• Kinematics & Rotational Motion
• OFFERED PRICE: Rs. 636
• View Details