How do you put 4.898989 E5 *
1 answer:
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The distance covered is 54.0 m
Explanation:
Since the motion of the car is a uniformly accelerated motion, we can use the following suvat equation:
where
u is the initial velocity
t is the time
a is the acceleration
s is the distance covered
For the car in this problem, we have
u = 0 (it starts from rest)
is the acceleration
t = 3.9 s is the time
Substituting, we find s:
Learn more about accelerated motion:
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Answer:
K = 13.276 GJ
Explanation:
Given:
Mass of the aircraft (m) = 98,000 metric ton
Speed of the aircraft (v) = 32 knots
Kinetic energy of the aircraft (K) = ?
We know that,
1 metric ton = 1000 kg
∴ 98,000 metric ton = 98,000 × 1000 = 9.8 × 10⁷ kg
Also, 1 knot = 1 nautical mile per hour
So, 32 knots = 32 nautical miles per hour
Converting nautical miles per hour to meter per second using the following conversions, we get:
1 nautical mile = 1852 m
1 hour = 3600 s
Therefore, 1 nautical mile per hour =
So, 32 nautical miles per hour =
Therefore, the mass and speed of the aircraft are:
Now, kinetic energy is given as:
Plug in the above values and solve for 'K'. This gives,
Now, we know that, 1 GJ = 10⁹ J
Therefore, the value of 'K' in terms of GJ is given as:
K = 13.276 GJ