Can anyone explain what weak force could do? I’ve been reading comics and I don’t understand what they can do when it says “they
1 answer:
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Answer:
A) vectors: veloicty, force
scalar: speed, work
B) t = 1.75 s, C) v = - 17 2 m / s
Explanation:
We answer each part separately
A) A vector magnitude has magnitude and direction instead a scalar magnitude has only magnitude
vector quantities: the speed of a car number is the magnitude and direction is where it goes
Force, the number is the magnitude and above that applies gives direction
Scalar magnitude: how quickly the number of the speedometer of the car
Temperature, work
B) I = 15 m height to the soil and get to calculate time = 0
y = y₀ + v₀ t - ½ g t²
as the ball is loose its initial velocity is zero
0 = 0 +0 - ½ g t²
t =
t =
t = 1.75 s
C) the velocity to the reach the floor
v = vo - g t
v = 0 - g t
v = - 9.8 1.74
v = - 17 2 m / s
The negative signt iindicates that the speed goes down
Answer:
The angular momentum and angular velocity are 1.134 kg.m²/s and 174.5 rad/s.
Explanation:
Given that,
Moment of inertia
Torque = 21 N.m
Time dt = 54 ms
(a). We need to calculate the angular momentum
Using formula of torque
Where, dL = angular momentum
t = time
= torque
Put the value into the formula
(b). We need to calculate the angular velocity of the disk
Using formula of angular velocity
Hence, The angular momentum and angular velocity are 1.134 kg.m²/s and 174.5 rad/s.