Answer:
-60.82 m/s²
Explanation:
recall that the acceleration due to gravity, g = 9.81 m/s²
We must also realize that during the car crash, the moving car is being brought to a stop. Hence, it is actually a deceleration (i.e a negative acceleration)
Therefore we must add a negative sign to our acceleration to describe the deceleration.
acceleration = - 6.2g
= -6.2 x 9.81 m/s²
= -60.8 m/s²
Answer:
Force,
Explanation:
There are two positive charges, 2 C and 5 C, separated by a distance of 20 cm in a vacuum. What is the value of the modulus of the electrostatic force between them?
We have,
Charge on object 1, q₁ = 2 C
Charge on object 2, q₂ = 5 C
Distance between charges, r = 20 cm = 0.02 m
The electric force between two charges is given by the formula as follows :
Plugging all the values we get :
So, the electric force between two charges is .
Answer:
Speed, S = 0.5m/s
Explanation:
Given the following data;
Distance = 30 meters
Time = 1 minute = 60 seconds
To find the speed;
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;
Substituting into the above formula;
Speed, S = 0.5m/s
Answer:
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