Engineering Board Exam Reviewer · Engineering Mechanics · easy
A car starts with an initial velocity of 5 m/s and accelerates uniformly at 2 m/s2 for 3 seconds. What is its final velocity?
- 11
- 30
- 7
- 6
Answer
A. 11
Solution
v = v0 + at = 5 + (2)(3) = 11 m/s.
More Engineering Mechanics questions
- A reference frame in which Newton's laws of motion hold true without correction is called a(n):
- In dynamics, D'Alembert's principle allows a dynamic problem to be treated as a static equilibrium problem by introducing:
- According to Newton's first law (law of inertia), a body at rest or in uniform motion will remain so unless:
- Kinematics differs from kinetics in that kinematics:
- Mass and weight differ in that:
- Inertia refers to a body's:
- Which of Newton's laws states that the acceleration of a body is directly proportional to the net force acting on it and inversely…
- Dynamics is the branch of mechanics concerned with:
- A semicircular area has a radius of 3.2 m. What is the distance of its centroid from the flat (diameter) edge?
- A right triangle has a height of 5 m. What is the vertical distance of its centroid measured from its base?