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What will be its displacement after 2.5s when a bullet is fired straight up from a gun with a muzzle velocity of 172 meters per second and the acceleration of gravity is 9.8 meters per sec sq.?
Wiki User
∙ 14y ago
The acceleration of gravity is 9.8 m/s2 .
After 2.5 s, the bullet's speed is [ 172 - 2(9.8) ] = 152.4 m/s upward.
The average speed during those 2.5 seconds is [ 1/2 (172 + 152.4) ] = 162.2 m/s.
In 2.5 seconds at that average speed, the bullet travels (162.2 x 2.5) = 405.5 meters.
Wiki User
∙ 14y ago
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How do you find time from the formula Velocity equals initial velocity plus gravity times time squared?
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What is the acceleration at highest pointn when ball is thrown straight up?
The acceleration is the acceleration of gravity, downwards, or 9.8m/s/s (32 ft/s/s). When ball is thrown straight up it has an initial velocity that is decreasing because of gravity; at the highest point velocity is zero but acceleration is always constant at gravity rate.
How is gravity related to calculus?
The way in which a body moves when under the influence of gravity, and possibly other forces, requires the study if vector calculus. The net forces cause acceleration in the motion. The velocity of the body is the integral of the acceleration and displacement is the integral of velocity.
How is acceleration due to gravity be zero in a parachute?
At terminal velocity (constant velocity), the acceleration is zero, but prior to that, there is a downward acceleration.
How is the initial velocity zero but the acceleration is not?
Going back to definitions, Velocity is change of distance with time; and acceleration is change in velocity with time. Initially, the velocity is zero, as is the acceleration, BUT the Force of Gravity attracts the falling mass, and causes velocity to appear. But the continued application of the Force of Gravity causes the velocity to increase. And as we know, increase in velocity is acceleration. [space for QED]
Why does gravity change velocity?
Gravity exerts a force on objects; such a force (if not counteracted by some other force) will cause an acceleration, according to Newton's Second Law. The amount of the acceleration can be calculated as a = F/m.
How are acceleration and gravity related?
If there are no other forces that counter it, gravity will cause an acceleration - basically it will change an object's velocity.
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.
Effect of acceleration due to gravity?
Acceleration simply refers to the rate of change of a velocity. You might say that the effect of an acceleration - any acceleration - is therefore a change of velocity.
How can you calculate the velocity and acceleration of falling objects?
Acceleration:Always the same, doesn't need to be calculated. Acceleration of gravity = 9.8 meters (32.2 ft) per second2Acceleration of gravity is negative (points down).Velocity:(Initial velocity) + [ (acceleration) x (time) ]Positive velocity = moving upNegative velocity = moving down
What word is the definition of the rate velocity changes with time gravity mass velocity or acceleration?
Force
What is the only factor needed to calculate change in velocity due to acceleration of gravity (9.8 ms)?
What is the only factor needed to calculate change in velocity due to acceleration of gravity 9.8 ms?
