A particle starts from the origin at t = 0 with a velocity of 5.0î m/s and moves in the x-y plane under the action of a force that produces a constant acceleration of (3.0î +2.0 ĵ ) . What is the speed of the particle at the instant its x-coordinate is 84 m?
1. | 36 m/s | 2. | 26 m/s |
3. | 1 m/s | 4. | 0 m/s |