Saturday

April 18, 2015

April 18, 2015

Posted by **jane** on Sunday, July 14, 2013 at 3:12pm.

- Elementary mechanics -
**MathMate**, Sunday, July 14, 2013 at 7:29pmUse the kinematics equation:

Vf=Vi+at

where

Vf=final velocity=i-2j (m/s)

Vi=initial velocity, yet unknown

a=acceleration=F/m (in vector form)

t=time=10 s

a=(2i+7j)/5=0.4i + 1.4j

Vf=(i-2j)+(0.4i+1.4j)(10)

=(i-2j)+(4i+14j)

=5i+12j

**Answer this Question**

**Related Questions**

PHYSICS - 1.Two trolleys X and Y with momenta 20 Ns and 12 Ns respectively ...

Physics - A body of mass 10kg moving with velocity 30m/s collide with another ...

physics - A 3.0-kg body is initially moving northward at 15 m/s. Then a force of...

Physics - A 3.9 kg body is initially moving northward at 15 m/s. Then a force of...

physics - 1.A body with an initial velocity of 18km/hr accelerates uniformly at ...

Physics - The velocity acquired by a body moving with uniform acceleration is ...

Physics - A body of mass 20 kg moving with a velocity of 80 m/s collied with ...

Physics - A net force of 75 lbs acts on a body of mass 25 slugs which is ...

Physics - The only force acting on a 4.7 kg body as it moves along the positive ...

physics - The only force acting on a 3.0 kg body as it moves along the positive ...