change in velocity is 3m/s,the force exterted by bat on ball is 4.8N and the acceleration is 30m/s².
<h3>Give some difference between velocity and speed.</h3>
1) Speed is scalar quantity but velocity is vector quantity.
2) Speed is distance followed by an individual with respect to time and velocity is displacement with respect to time .
1) final velocity- intial velocity
25-22= 3m/s
2) The force is
F= ma
. 0.16×30= 4.8N
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Answer:
Or
2,668,320,000
Explanation:
Potential energy is given as the product of mass, acceleration due to gravity and height.
PE=mgh
Where m is the mass of pyramid, g is acceleration due to gravity and h is height at any point.
In reference to the earth, we substitute h for 34.0 m and g with 9.81 m/s2 then taking m as 8000000000 kg we get that
PE=mgh=8000000*9.81*34.0=2,668,320,000 J
In scientific notafion, this is expressed as
If the applied force is in the same direction as the object's displacement, the work done on the object is:
W = Fd
W = work, F = force, d = displacement
Given values:
F = 45N
d = 12m
Plug in and solve for W:
W = 45(12)
W = 540J
Answer:
2.81 ev is the correct answer
Explanation:
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(A) The impeller blades are worn or slipping on the shaft