Explanation:
If a question says "at what point does the ball stop?", it means we need to find the position of the ball when its final velocity is equal to 0. It can be calculated using the equation of kinematics as follows :
d = ut + (1/2) at²
and
v²-u²=2ad
Where, u is initial velocity, v is final velocity, a is acceleration, t is time and d is displacement.
Answer:
3
Explanation:
The mechanical advantage is the ratio of the output force to the input force.
MA = 156 / 52
MA = 3
<span>2) The correct answer is option C i.e. The object will move if the forces are unbalanced. The objects move only on the application of unbalanced forces. 3. The correct answer is option A. i.e. net An object moves in the direction of the net force. The object moves in the direction of resultant or net force.</span>
Answer:
Explanation:
Mass of a hockey puck, m = 0.17 kg
Force exerted by the hockey puck, F' = 35 N
The force of friction, f = 2.7 N
We need to find the acceleration of the hockey puck.
Net force, F=F'-f
F=35-2.7
F=32.3 N
Now, using second law of motion,
F = ma
a is the acceleration of the hockey puck
So, the acceleration of the hockey puck is .
Answer:
Oh wow, ur pretty! Why whould anybody say things about you? You have such pretty skin. I am so not pretty tho.
Explanation: