The answer is A because it describes both toy cars
Answer:
A hypothesis is a basically a theory proposed to a subject or refrence to an act with limited evidences.
Explanation:
Time = Distance/Speed
= 96km / (30km/h)
= 3.2h. (Or 3 hours and 12 minutes)
Answer:
Explanation:
Work done is defined as the product of force and the displacement in the direction of force.
W = F x d x Cos θ
Where, θ be the angle between force and the displacement.
The force of gravity acts downwards and the displacement is in upward, so the angle is 180. cos 180 = -1 , so the work done by the force of gravity is negative.
The force of rope acting in upwards direction and displacement also in upwards direction.
So, the work done is positive
