Answer:
A) The acceleration will double
Explanation:
Given the expression according to Newton's second law F = ma where;
F is the force
m is the mass of the object
a is the acceleration
Let the initial force be F1 and acceleration be a1
F1 = ma1...(1)
If the pushing force suddenly doubles if the lawn mover is pushed over a length of grass, the new force F2 = 2F1 and acceleration of force F2 will be a2, since the mass doesn't change;
F2 = ma2
2F1 = ma2...(2)
Dividing equation 2 by 1, we will have;
2F1/F1 = ma2/ma1
2 = a2/a1
a2 = 2a1
This shows that the acceleration doubles if the pushing force doubles since force is directly proportional to the acceleration. Increase in the applied force will lead to equal increase in the acceleration and vice versa
Explanation :
The resistance of the flashlight is 2.4 ohms
The current flowing in the circuit is 2.5 A
The Ohm's law gives the relation between the following quantities i.e.
Current
voltage
and resistance
Mathematically, Ohm's law can be written as :
V =I R
The voltage applied by the batteries is 6 volts.
Hence, this is the required solution.
Answer:
D - 6.0
Explanation:
i'm not getting more detailed than the other answer so yeah i just took the test