Answer:
It is wrong to say that "a single object all alone is moving" simply because it goes against Newton's law of inertia.
Explanation:
From Newton's law of inertia, it states that: An object at rest or in constant motion will continue in it's present state unless it is acted upon by an external force.
Which means that a single object by itself cannot move anywhere unless it is acted upon by an external force..
Thus, it is wrong to say that "a single object all alone is moving" simply because it goes against Newton's law of inertia.
Answer:
Explanation:
Heat and temperature are related to each other, but are different concepts. Heat is the total energy of molecular motion in a substance while temperature is a measure of the average energy of molecular motion in a substance. ... Temperature does not depend on the size or type of object
Answer:
After 9 seconds the object reaches ground.
Step-by-step explanation:
We equation of motion given as h = -16t²+128t+144,
We need to find in how many seconds will the object hit the ground,
That is we need to find time when h = 0
0 = -16t²+128t+144
16t²-128t-144= 0
Negative time is not possible, hence after 9 seconds the object reaches ground.
Answer:
Maximum height reached by the bullet = 4.01 m
Explanation:
Horizontal displacement = 92 m
Time taken = 6.4 s
Horizontal velocity
We have angle of projection = 32°
Horizontal velocity = u cos 32 = 14.375
u = 16.95 m/s
Vertical velocity = u sin θ = 16.95 x sin 32 = 8.98 m/s
Time of flight till it reaches maximum height = 0.5 x 6.4 = 3.2s
Now we have vertical motion of bullet
S = ut + 0.5 at²
Vertical velocity = u = 16.95 m/s
a = -9.81 m/s²
t = 3.2s
Substituting
S = 16.95 x 3.2 - 0.5 x 9.81 x 3.2² = 4.01 m
Maximum height reached by the bullet = 4.01 m