The area under which of these graphs can be used to estimate the value of impulse?
1 answer:
Answer:
Graph A
Explanation:
The impulse of a force F is defined as the integral of the force F over the time, t:
where t1 and t2 represent the time interval during which the force F is applied.
If we compare this to the graph, we see that the impulse J basically corresponds to the area under the graph of the force, F, against the time, t. So, in this case, it corresponds to choice A, which represents exactly this graph (force against time).
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Answer:
Explanation:
Expression for time period of a pendulum is as follows
T =
l is length of pendulum from centre of bob and g is acceleration due to gravity
Given
Time period T = 1.583
g = 9.846
Substituting the values
1.583 =
l =
l = .6244 m
= 62.44 cm
Length of rod = length of pendulum - radius of bob
= 62.44 - 13.62
= 48.82 cm
= .488 m
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.