Advertisements
Advertisements
Question
Convert the following acceleration:
7200 km/h2 into m/s2
Solution
7200 km/h2 = ( 7200 X 1000)/(3600 X 3600) = 5/9 ms-2.
APPEARS IN
RELATED QUESTIONS
A toy car initially moving with uniform velocity of 18 km h-1 comes to a stop in 2 s. Find the retardation of the car in S.I. units.
A car travels with uniform velocity of 25 m s-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s. Find:
- The distance which the car travels before the brakes are applied,
- Retardation and
- The distance travelled by car after applying the brakes.
A vehicle is accelerating on a straight road. Its velocity at any instant is 30 km/h. After 2 s, it is 33.6 km/h, and after further 2 s, it is 37.2 km/h. Find the acceleration of the vehicle in m s-2. Is the acceleration uniform?
Explain the following concept in your own words with everyday examples:
Acceleration
From the diagram given below, calculate acceleration.
What does a positive acceleration mean?
Can you use the relation [B1]?
State if the following situation is possible:
A body moving with constant acceleration but with Zero velocity.
The slope of a velocity-time graph gives ______.
If the velocity of a body does not change, then its acceleration is ______.
