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Car accelerates along a straight line from rest to a final velocity of 55 fts in 4 seconds.What is the magnitude of the car's acceleration?
Wiki User
∙ 7y ago
55 feet is not a velocity.Assuming you mean "55 feet per second", just divide the difference in speed (55 feet per second minus 0 feet per second) by the time, to get the acceleration.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agovelocity (v) is intial velocity (vo) +acceleration (a) x time (t);
v = vo + at; since initial velocity is 0, then a = v/t = 55/4 = 13.75 f/s/s
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When a car rounds a curve it's acceleration is zero?
Actually, a car always accelerates on a curve. This is because acceleration, like the velocity it alters, is a vector that has both magnitude and direction. Since taking a curve involves a change of direction, there must be an acceleration to alter the direction; otherwise, the car can only continue straight.
Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line what does this indicate about the object acceleration?
It means that the object was accelerating or decelerating at least part of the time.
Velocity is the slope of the displacement vs time graph?
Velocity is NOT the slope of the acceleration vs. time graph. Velocity is the area under the acceleration vs. time graph. Velocity is the slope of a position vs. time graph, though. For you Calculus Junkies, v = the integral of acceleration with respect to time.
Why throwing a ball always put down in curve not in straight?
-- The only horizontal force on a thrown ball is the force of air resistance, so the horizontal acceleration is very small, and the horizontal speed stays almost constant. -- The vertical force on a thrown ball is the force of gravity, so the ball accelerates straight down at the acceleration of gravity. -- The result of unequal horizontal and vertical components of acceleration is a curved path.
What is the acceleration towards the inside of a curved path?
"Acceleration" does not mean "speeding up". Acceleration means any changein the speed or direction of motion. An object with no acceleration moves at aconstant speed in a straight line. If its path is not straight, then the directionof its motion changes, which fits the definition of acceleration.
When a car rounds a curve it's acceleration is zero?
Actually, a car always accelerates on a curve. This is because acceleration, like the velocity it alters, is a vector that has both magnitude and direction. Since taking a curve involves a change of direction, there must be an acceleration to alter the direction; otherwise, the car can only continue straight.
Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line what does this indicate about the object acceleration?
It means that the object was accelerating or decelerating at least part of the time.
Velocity is the slope of the displacement vs time graph?
Velocity is NOT the slope of the acceleration vs. time graph. Velocity is the area under the acceleration vs. time graph. Velocity is the slope of a position vs. time graph, though. For you Calculus Junkies, v = the integral of acceleration with respect to time.
Why throwing a ball always put down in curve not in straight?
-- The only horizontal force on a thrown ball is the force of air resistance, so the horizontal acceleration is very small, and the horizontal speed stays almost constant. -- The vertical force on a thrown ball is the force of gravity, so the ball accelerates straight down at the acceleration of gravity. -- The result of unequal horizontal and vertical components of acceleration is a curved path.
What is the acceleration of car that travels in a straight line at constant speed?
Straight line at a constant speed = no acceleration
In an acceleration graph showing speed versus time a straight line shows the acceleration is?
A graph that shows speed versus time is not an acceleration graph.The slope of the graph at any point is the acceleration at that time.A straight line shows that the acceleration is constant.
When the acceleration is not in a straight line on a graph what does this indicate?
That the force that causes the acceleration is not constant.
Does a particle moving in a straight line have acceleration?
A particle moving in a straight line may or may not have acceleration. Acceleration is adifferent phenomenon altogether. the rate of change of velocity is acceleration, a particle can move in a straight line with a constant velocity thus having no acceleration & it can also move with increasing or decreasing velocities thereby accelerating or deaccelerating.
What is the acceleration towards the inside of a curved path?
"Acceleration" does not mean "speeding up". Acceleration means any changein the speed or direction of motion. An object with no acceleration moves at aconstant speed in a straight line. If its path is not straight, then the directionof its motion changes, which fits the definition of acceleration.
What is the difference between uniform acceleration and constant acceleration?
Gravitational acceleration is defined as the acceleration of an object caused by the force of gravitation, where all small bodies accelerate in a gravitational field at the same rate relative to the center of mass. Uniform linear acceleration is when a body moves in a straight line and accelerates at a constant rate, and the body is said to have a uniformly accelerated linear motion.
What is slope of velocity graph?
The slope of a straight line tells the rate at which your variables are changing. In this case, it tells you how your velocity is changing over time, which in physics is how we define acceleration. If you graph the velocity of an object vs time when it is falling through the air, it gives to the acceleration due to gravity because that is the acceleration all objects fall at.
What is the acceleration of an object that travels in a straight line at a constant speed?
The acceleration is zero in this case.
