A car weighs 1323 N. what is its mass?
2 answers:
Answer:
Mass of the car, m = 135 kg
Explanation:
The weight of the car is 1323 N. Let m is its mass. The relation between the mass and weight comes form Newton's second law of motion. We know that the weight of an object is the force that is exerted due to acceleration due to gravity.
The mathematical form of weight of an object is given by :
W = mg
g is the acceleration due to gravity
m = 135 kg
So, the mass of the car is 135 kg. Hence, this is the required solution.
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Answer:
Explanation:
The horizontal distance covered by the ball in the falling is only determined by its horizontal motion - in fact, it is given by
where
is the horizontal velocity
t is the time of flight
The time of flight, instead, is only determined by the vertical motion of the ball: however, in this problem the vertical velocity is not changed (it is zero in both cases), so the time of flight remains the same.
In the first situation, the horizontal distance covered is
in the second case, the horizontal velocity is increased to
And so the new distance travelled will be
So, the distance increases linearly with the horizontal velocity.
Answer: The correct answer is option C.
Explanation:
Weight = Mass × Acceleration
Let the mass of the space probe be m
Acceleration due to gravity on the earth = g
Weight of the space probe on earth = W
Acceleration due to gravity on the Jupiter = g' = 2.5g
Weight of the space probe on earth = W'
The weight of the space probe on the Jupiter will be 2.5 times the weight of the space probe on earth.
Hence, the correct answer is option C.