A man of mass 80kg stands next to a stationary ball of mass 4kg on a frictionless surface. He kicks the ball forward along the s
1 answer:
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Answer:
a) , b)
Explanation:
a) The absolute pressure at a depth of 27.5 meters is:
b) The force exerted by the water is:
Answer:
The inverse frequency is
Explanation:
Given that,
Magnetic field = 20 T
Proportionality constant = 5 Hz/T
Change in magnetic field = 3 T
We know that,
We need to calculate the inverse frequency
Using formula of frequency
Put the value into the formula
Hence, The inverse frequency is
Answer:
a) Impulse |J|= 219.4 kgm/s
b) Force F = 2672 N
Explanation:
Given
Height of fall h = 0.50 m
Mass M = 70 kg
Period of collision t = 0.082 s
Solution
The final velocity of the person v is zero since the person will come to rest.
The initial velocity of the person can be calculated by using the "law of conservation of energy".
Initial Kinetic energy = Final potential energy
a) Impulse
J = final momentum - initial momentum
Magnitude of impulse
b) Force