Posted by **Sabrina** on Thursday, September 22, 2011 at 12:48pm.

An aircraft has a landing velocity of 50 ms-1 and decelerates uniformly at 10 ms-2Calculate:

(a) the time taken to reach 15 ms-1

(b) the distance travelled during this time

(c) the velocity of the car when it was 100 m from the start point

- Physics -
**Henry**, Saturday, September 24, 2011 at 3:57pm
a. t = (Vf - Vo) / a,

t = (15 - 50) / -10 = 3.5s.

b. d = Vo*t + 0.5a*t^2,

d = 50*3.5 + (-5)(3.5)^2 = 113.75m.

c. Vf^2 = Vo^2 + 2a*d,

Vf^2 = (50)^2 + (-20)100 = 500,

Vf = 22.36m/s.

## Answer This Question

## Related Questions

- physics - 4) An aircraft has a landing velocity of 50 ms-1 and decelerates ...
- Physics - Kinematics - Need some help with my homework! Question 7 a) ...
- mechanical science - 10. A car is moving in a straight line starts from rest, ...
- physics - A car accelerates from rest at a steady rate of 1 ms-2. Calculate: (a...
- physics - A car accelerates from rest at a steady rate of 1 ms-2. Calculate: (a...
- Mathematics - Two readings are taken from an aircraft's flight record Time - 08:...
- science - An aircraft lands with an initial velocity of 85 m/s and decelerates ...
- physics - an object accelerates uniformly along a straight line from a velocity ...
- Mathematics - an aircraft's reading shows time 8:55 at distance travelled 957km ...
- physics - When brakes applied to a moving car travelling at 60km/hr it ...

More Related Questions