We have: a = v/t
Here, t = 2 s [ Given ]
a = 9.8 m/s² [constant value for earth system ]
Substitute their values into the expression:
9.8 = v/2
v = 9.8 × 2
v = 19.6 m/s
In short, Your Answer would be Option B
Hope this helps!
Answer:
40 kilo grammes ...............
Examples of devices that convert electrical energy into mechanical energy — in other words, devices that use electrical energy to move something — include:
the motor in today’s standard power drills
the motor in today’s standard power saws
the motor in an electric tooth brushes
the engine of an electric car
the motor in a fan
the motor in a remote control cars that runs on batteries. So your answer would be B. Motorsport
Answer:
A, C and D
Explanation:
The impulse is defined as the product between the force (F) and the time of the collision (t):
Let's apply the formula to calculate the impulse for each situation:
A) 
B) 
C) 
D) 
We see that the situations in which the impulse is equal to 10 units are:
A, C and D
The phase of the moon facing the Earth is always the same, which means that the speed of rotation of the moon and the Earth are the same. Because of which the other part of the moon is not visible to the people on Earth.
