Answer:
Velocity is a measure of both speed and direction of motion. Velocity is a vector, which is a measurement that includes both size and direction. Velocity can be represented by an arrow, with the length of the arrow representing speed and the way the arrow points representing direction.
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Explanation:
Answer:
In explanation
Explanation:
Pilots who dont use trim often like the feeling of holding constant back pressure because The heavier control forces makes it more difficult to over-control the airplane inside the turn, so it gives the sense of a more stable flight
Answer:
The centripetal acceleration of the rock is decreases by a factor of 3.
Explanation:
Given that,
Radius of circle
Time period = T
Radius of new circle
We need to calculate the velocity
Using formula of velocity
The time period for new circle
The time period remains same.
Put the value in the equation
The acceleration of the rock is
We need to calculate the acceleration of the new rock
Using formula of acceleration
Put the value into the formula
Hence, The centripetal acceleration of the rock is decreases by a factor of 3.
Answer:
change in momentum
Explanation:
using newton's second law,
F = m ( v - u ) / t....
Ft = mv - mu
impulse is either Ft ( product of force applied and the time taken for its action )
or impulse is mv - mu ( change in momentum )
Answer:
D. accelerated
Explanation:
According to Newton's first law of motion, an object always remains in its state of rest or in uniform motion until an external unbalanced force is acted upon the object. This means if an external unbalanced force is acted on the object, it will come to a non-uniform motion i.e., an accelerated motion.
Let me first get you clear that uniform motion is determined by a constant velocity and a state of rest is considered by a zero velocity or speed. But, here we have an unbalanced force acting on the object. This means the object will change its velocity and hence, it has an accelerated motion.