Because the electricity in the atoms are surrounded by the nucleus which is surrounded by the electron cloud
Answer:
6.21 rad/s
1.3041 m/s, 0.567 m/s²
Explanation:
= Final angular velocity
= Initial angular velocity = 0
= Angular acceleration = 2.3 rad/s²
= Angle of rotation
t = Time taken = 2.3 s
Equation of rotational motion
The angular speed is 6.21 rad/s
Linear velocity is given by
Linear velocity is 1.3041 m/s
Tangential acceleration is given by
Tangential acceleration is 0.567 m/s²
In degress the angle would be
From x axis it would be
The angle is from x axis
Yes it is possible. Momentum is calculated by the mass of the object times its velocity.
For example, say a bowling ball weighs 3.0kg and is travelling at a speed of 3.0m/s. Its momentum would be 3.0×3.0=9.0 kg·m/s.
Now say we have a baseball weighing 0.20kg and it is travelling at a speed of 47.0m/s. Its momentum would be 0.20×47.0=9.4 kg·m/s, which is more than that of the bowling ball.
Answer:
4.5s
Explanation:
u=30m/s
v=50m/s
s=180m
a=constant(given)
By third equation of motion, v
2
=u
2
+2as
(50)
2
=(30)
2
+2a(180)
a=
3
40
m/s
2
By first equation of motion, v=u+at
50=30+(
9
40
)t
t=
2
9
=4.5sec
Answer:
-1.09m/sec^2
Explanation:
Acceleration= (Vf-Vi)/Time
=12-54.8
= -42.8
= -42.8/39
=-1.09
-ve sign is due to recoil of train
as it suddenly hits brakes.
