1. Which science will discuss how matter is created throughout the universe?
1 answer:
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Answer:
She covers the distance is 12 km.
The magnitude of displacement is 8.6 km.
The direction of her displacement is north east.
Explanation:
Given that,
Christina drives his moped 7 kilometers North and stop for lunch and then drive 5 km east.
We need to calculate the total distance
Using formula of distance
Put the value into the formula
We need to calculate the magnitude of displacement
Using formula of displacement
The direction of her displacement is north east.
Hence, She covers the distance is 12 km.
The magnitude of displacement is 8.6 km.
The direction of her displacement is north east.
Answer:
(a) d = 15.6 m
(b) v' = - 4.3 m/s
Given:
Initial velocity, v = 9.50 m/s
Acceleration, a = or deceleration = 2.30
Solution:
(a) For the calculation of the distance covered, we use eqn (2) of motion:
where
d = distance covered in time t
t = 6 s (Given)
Now,
d = 15.6 m
(b) For the calculation of her final velocity, we use eqn 1 of motion:
v' = v + at
v' = 9.50 + (- 2.30)(6) = - 4.3 m/s
(c) Since, the final velocity after the body slows down comes out to be negative and the distance covered and displacement of the body are different, it does not make sense.