Answer:
The speed of the arrow after passing through the target is 30.1 meters per second.
Explanation:
The situation can be modelled by means of the Principle of Linear Momentum, let suppose that the arrow and the target are moving on the same axis, where the velocity of the first one is parallel to the velocity of the second one. The Linear Momentum model is presented below:
Where:
, - Masses of arrow and target, measured in kilograms.
, - Initial and final speeds of the arrow, measured in meters per second.
, - Initial and final speeds of the target, measured in meters per second.
The final speed of the arrow is now cleared:
If , , , and , the speed of the arrow after passing through the target is:
The speed of the arrow after passing through the target is 30.1 meters per second.
<span><span>Work from Days:<span><span><span>If A can do a piece of work in n days, then A's 1 day's work =</span></span></span></span><span /></span>
<span><span>Days from Work:<span><span>If A's 1 day's work =</span></span></span></span>
<span><span><span><span>,<span>then A can finish the work in n days</span></span></span></span><span>Ratio:If A is thrice as good a workman as B, then:Ratio of work done by A and B = 3 : 1.Ratio of times taken by A and B to finish a work = 1 : 3.</span></span>
Answer:
The driver can avoid the child because at the time she brake 1.6s the car just move 20.928 meters so is far to the 65 meters where the kind is
Distance= 20.928 m
Explanation:
Distance the kid is 65m so the car have to be less in the time she is braking
So to calculated the distance while she is braking
The distance of the car is less than the distance of the kid in his bike
So she didn't hit him
The answer is Fuse, the Fuse has a low melting point
If the absolute pressure of a gas is 550.280 kPa, its gage pressure is
<span>
a. 101.325 kPa.
b. 448.955 kPa.
c. 651.605 kPa.
d. 277.280 kPa.</span>
The answer is B.