0
In these situations, you usually define one direction as being positive and the other as negative. In this problem, the question does this for us: it clearly tells us that when the ball is moving down the lane, its velocity is negative. "Down the lane" is the negative direction.
Average acceleration is give by
a_ave = Δv/Δt
where Δv is a change in velocity and Δt is elapsed time.
Δv = v_final - v_initial
In this problem, the ball "slowed down," but did not change direction. This means that the NUMBER associated with "v" got smaller (5 ... 4 ... 3 ...) but the SIGN (-) did not change.
I hope it makes sense, then, that "v_final" was a smaller (slower) number with a negative sign (moving down the lane) while "v_initial" was a larger (faster) number with a negative sign (moving down the lane).
The subtraction of a large negative number from a small one (like, for instance, -4 - [-10]) is a POSITIVE number whose value is given by the difference (+6).
So Δv is positive, and Δt is ALWAYS positive (no matter what).
Therefore a_ave, the quotient of two positive numbers, will be positive.
What else can I help you with?
What is the acceleration of a bowling ball when at rest at the end of the bowling lane?
The acceleration of a bowling ball at rest at the end of the bowling lane is 0 m/s^2. Since the ball is not changing its velocity, it is not experiencing any acceleration.
When did High Velocity Bowling happen?
High Velocity Bowling happened in 2007.
Are bowling scores and golf scores positive or negative correlations?
Bowling scores would be a positive correlation because the higher the score, the better the game. Golf scores would be negative correlations because the higher the score, the worse you are playing.
When was High Velocity Bowling created?
High Velocity Bowling was created on 2007-12-07.
What actors and actresses appeared in High Velocity Bowling - 2007?
The cast of High Velocity Bowling - 2007 includes: Chris Canning as Short Order Cook
Is negative eight in bowling good or bad?
A negative eight in bowling is impossible. The lowest score one can have for a game is 0.
Why does a bowling ball move without acceleration when it rolls along a alley?
Strictly speaking, it moves with negative acceleration. The forces of friction and air resistance both act to slow the ball down. If the lane were long enough, the ball would eventually come to a complete stop.
How much force N is needed to knock over a bowling pin?
It typically takes about 110-130 Newtons of force to knock over a standard 15-inch-tall bowling pin. This force can vary depending on factors such as the weight of the bowling ball and the angle at which it strikes the pin.
How much force is needed to accelerate at 25 kg bowling ball at?
The force required to accelerate a 25 kg bowling ball can be calculated using the equation F = ma, where F is the force, m is the mass of the bowling ball, and a is the acceleration. If the acceleration is given, you can plug in the numbers to find the force needed.
Where what a bowling ball and a napkin fall with the same acceleration?
In a vacuum, both a bowling ball and a napkin would fall with the same acceleration due to gravity, which is approximately 9.81 m/s^2. This is because in the absence of air resistance, all objects experience the same acceleration regardless of their mass.
Examples where velocity is zero but not acceleration?
The earth is in orbit about the sun. It plods along in its orbit at close to 30 kilometers per second. But it is not moving in a straight line, as you know. It is following the curve of its orbital path. Earth's inertia and the gravitational attraction between the sun and the Earth are in equilibrium here, and though its speed is constant, its direction of travel is actually changing from moment to moment. That means its velocity is constantly changing. (Note that the actual speed of earth varies a bit through its orbit, but from moment to moment, the change of speed is miniscule.)Speed is distance (displacement) per unit of time. In this case, we have 30 km/sec for the earth. But when we consider velocity, we find that velocity is speed plus a direction vector. Though the speed of the earth is constant in its orbit, it is constantly changing direction and following its orbital path. Earth has a constant speed in its orbit, but its velocity is constantly changing because the direction it is traveling changes from moment to moment.
Were would a bowling ball and a napkin fall with the same acceleration?
Both the bowling ball and the napkin would fall at the same rate of acceleration due to gravity, assuming no external forces are acting on them. This is because all objects experience the same acceleration due to gravity, regardless of their size, mass, or shape.
