Answer:
70 + 50 = 120 km/hr
Explanation:
The driver of either car would see the other car approaching or departing at 120 kph
Answer:
"1155 N" is the appropriate solution.
Explanation:
Given:
Acceleration,

Forces resisting motion,

Mass,

By using Newton's second law, we get
⇒ 
Or,
⇒ 
By putting the values, we get
⇒ 
⇒ 
⇒ 
I would say Its an example of polygenic inheritance because The determination of a particular characteristic, e.g. height or skin colour, by many genes (polygenes), each having a small effect individually. Characteristics controlled in this way show continuous variation.
Answer:
Time taken to accelerate to 48 m/s = 8 seconds
Explanation:
Initially the object is moving south at = 
So, initial velocity of the object = 
Acceleration caused by the force = 4 
Final velocity towards south = 
Using equation of motions:

where
final velocity
initial velocity
acceleration
time
Plugging in values.


Subtracting both sides by 16


Dividing both side by 4.


∴ 
Time taken to accelerate to 48 m/s = 8 seconds