WebNov 5, 2024 · The first condition is that the net force on the object must be zero for the … WebRecall from Unit 1 of The Physics Classroom that speed and velocity refer to two distinctly different quantities. Speed is a scalar quantity and velocity is a vector quantity. Velocity, being a vector, has both a magnitude and a direction. The magnitude of the velocity vector is the instantaneous speed of the object.
Question 7 the object maintains a zero velocity for - Course Hero
WebTherefore, the first law says that the velocity of an object remains constant if the net force … WebNov 5, 2024 · An object with constant velocity has zero acceleration. A motionless object still has constant (zero) velocity, so motionless objects also have zero acceleration. Newton’s second law states that: \[\mathrm{∑F=ma}\] so objects with constant velocity also have zero net external force. This means that all the forces acting on the object are ... mdc math lab
Speed and Velocity - Physics Classroom
WebOct 27, 2024 · An object at rest remains at rest, and an object in motion remains in motion … Webwhere the average velocity is. ˉv = v0 + v 2 (constant a). 2.29. The equation ˉv = v0 + v 2 reflects the fact that, when acceleration is constant, v is just the simple average of the initial and final velocities. For example, if you steadily increase your velocity (that is, with constant acceleration) from 30 to 60 km/h, then your average ... Web6) A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval it acceleration is A) zero. B) 10 km/hr. C) 110 km/hr. D) 1000 km/hr. Answer: A Diff: 1 Topic: Linear Motion 7) While an object near the earth's surface is in free fall , its A) velocity increases. B) acceleration increases. C) mass increases. mdc member towns