Hi there!
Use the following formula to solve:
KE = 1/2mv², where:
KE = kinetic energy
m = mass (kg)
v = velocity (m/s)
Therefore:
KE = 1/2(1500)(30)²
KE = 1/2(1500)(900)
KE = 675000 J
An electric mixer is used for heat or used for movement?
1 answer:
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Answer:
a) the answer is t=4 seconds
b) acceleration is zero
c) displacement= 142 m
Explanation:
Given the position of the particle
a) the time required when velocity
now we solve for time
b) acceleration when
acceleration is the time derivative of velocity i.e
c) the net displacement of the particle during the interval t = 1 s to t = 4 s is
Answer:
hello your question is incomplete hence I will give you a general answer on how a stunt cyclist performs his stunts successfully
answer ;
The stunt cyclist trying to perform some sort of stunt with the bicycle will be faced with some forces like the static fiction between the tires of the bicycle and wall and also a centripetal force.
In order to overcome the centripetal force the minimal grip of the bicycle must be equal to the weight and the speed at which the cyclist must go can be represented as :
Explanation:
The stunt cyclist trying to perform some sort of stunt with the bicycle will be faced with some forces like the static fiction between the tires of the bicycle and wall and also a centripetal force.
In order to overcome the centripetal force the minimal grip of the bicycle must be equal to the weight and the speed at which the cyclist must go can be represented as :
where ; r = radius of the tunnel where the stunt is to be performed
g = gravitational speed
u = coefficient of static friction