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Elan Coil [88]
3 years ago
12

Score

Physics
1 answer:
hammer [34]3 years ago
4 0

Answer:

(a) J = 10560  kg-m/s (b) 251.42 N

Explanation:

Given that,

Mass, m = 4400 kg

Initial speed, u = 5.2 m/s

Final speed, v = 7.6 m/s

Time, t = 42 s

(a) Let J be the impulse exerted on the vehicle. Impuse is equal to the change in momentum such as :

J = m(v-u)

J = 4400 (7.6-5.2)

J = 10560  kg-m/s

(b) Impulse = Force × t

F=\dfrac{J}{t}\\\\F=\dfrac{10560}{42}\\F=251.42\ N

Hence, this is the required solution.

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instantaneous velocity is a velocity covered at an instant while average velocity is the change in distance/ the change in time taken

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A mass m is attached to a string connected to a force sensor on a rotating platform. The platform’s angular velocity, ω, can be
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Answer:

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Explanation:

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Answer:

46.4 s

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