Wednesday

July 23, 2014

July 23, 2014

Posted by **jo147** on Sunday, July 1, 2012 at 5:05am.

1.change in speed,

2.change in velocity and magnitude of change in velocity ,

3.average acceleration and its magnitude .

- science -
**ajayb**, Sunday, July 1, 2012 at 9:33am1) change in speed: 12-5 = 7m/s

2) V1=5i & V2=12j

Change in vel.= V2-V1 = 12j-5i

its magnitude = sqrt(12^2+5^2)

= 13m/s^2

3) x-dir.: 0=5+Ax*5 => Ax= -1m/s^2

y-dir.: 12=0+Ay*5 => Ay= +12/5=2.4m/s^2

So A = -1i+2.4j

Mag. of av. acc.=sqrt(Ax^2+Ay^2)

**Related Questions**

AP Calculus - The position of a particle moving on the x-axis at time t>0 ...

Physics - A particle with m = 3.3E-27 kg is moving with a velocity of 6.0E7m/s. ...

physics - The position vector r of a particle moving in the xy plane is r=2ti+...

Calculus - The position of a particle moving on a horizontal line is given by s(...

Physics - A particle moving initially at 4 m/s in the positive x direction is ...

physics - The position of a particle moving along an x axis is given by x = 15t2...

calculus - 5. A particle moves along the y – axis with velocity given by v(t)=...

Physics - A particle of mass M moves through the lab at 0.6c. Suddenly it ...

Physics - Find the position and velocity of a particle at t=1.94 s if the ...

phyics - A 0.2 kg plastic ball moves with a velocity of 1.5 m/s. It collides ...