Question

A] A constant force acts on an object of mass 5 kg for a duration of 2 s. It increases the object's velocity from 3 m/s to 7 m/s. Find the magnitude of the applied force. B] How long would it take for a net upward force of 100 N, to increase the speed of a 50 kg object from 100 m/s to 150 m/s? Hint: Make use of Newton's Second law in terms of time rate of change in momentum.

Name: a a constant force acts on an object of mass 5 kg for a duration of 2 s it increases the objects velocity from 3 ms to 7 ms find the magnitude of the applied force b how long would it take f 79638
Uploaded: 2021-12-28T11:54:46-08:00
Duration: 4 min 59 s
Channel: Meera Devi
Description: a a constant force acts on an object of mass 5 kg for a duration of 2 s it increases the objects velocity from 3 ms to 7 ms find the magnitude of the applied force b how long would it take f 79638

          A] A constant force acts on an object of mass 5 kg for a duration of 2 s. It increases the object's velocity from 3 m/s to 7 m/s. Find the magnitude of the applied force. B] How long would it take for a net upward force of 100 N, to increase the speed of a 50 kg object from 100 m/s to 150 m/s? Hint: Make use of Newton's Second law in terms of time rate of change in momentum.

Added by Manuela V.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Meera Devi

12/28/2021

Step 1

Given: Initial velocity, u = 3 m/s Final velocity, v = 7 m/s Time, t = 2 s Using the formula: v = u + at 7 = 3 + a(2) a = (7 - 3) / 2 a = 2 m/s^2 Show more…

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A] A constant force acts on an object of mass 5 kg for a duration of 2 s. It increases the object's velocity from 3 m/s to 7 m/s. Find the magnitude of the applied force. B] How long would it take for a net upward force of 100 N, to increase the speed of a 50 kg object from 100 m/s to 150 m/s? Hint: Make use of Newton's Second law in terms of time rate of change in momentum.