The change in an object’s momentum is equal to

Question

BlackTom AI · Accepted Answer

The question asks about the relation between momentum change and force over time, which is the impulse-momentum concept.
Option 1: 'the net external force divided by the time interval.' This is incorrect because dividing force by time would yield a quantity with units of power over velocity, not momentum change. The momentum change is proportional to the force times the time interval, not force divided by time.
Option 2: 'the product of the mass of the object and the time interval.' Mass times time interval has units of mass·time and represents nothing directly tied to momentum change; momentum change involves velocity change, not mass alone multiplied by time. So this is not correct.
Option 3: 'the product of the force applied to the object and the time interval.' This matches the impulse relation: impulse equals F Δt, which equals the change in momentum. The conceptual link is that a force applied over a duration changes the object's momentum by that amount.
Option 4: 'the time interval divided by the net external force.' This inverted relation does not correspond to impulse or momentum change and has incorrect units, making it incorrect.
In summary, the only option that aligns with the impulse-momentum theorem F Δt = Δp is Option 3, the product of the force and the time interval.

SPHY001 Practice Quiz - Unit 08 | LA048

The change in an object’s momentum is equal to

查看解析

登录即可查看完整答案

类似问题

Which of the following is a correct definition of impulse in physics?

A 50 kg mass is sitting on a frictionless surface. A 157N force pushes the mass for 4.2 seconds until the mass reaches the desired velocity. Calculate the impulse in N.s. Only put in the numerical value. Answer to 1 decimal place and do not write the unit in your answer.

Which force-time curve has the smaller impulse, A or B?

A golf club exerts a force of 462 N on a golf ball ball for 18 ms. What impulse is given to the ball? Give your answer to one decimal place.

What is the impulse received by a ball of mass 0.5 kg that changes its velocity by 28 m s-1? Give your answer to the nearest whole number.

A tennis racquet exerts a force of 133 N on a ball for 0.035 s. What impulse is given to the ball? Give your answer to one decimal place.

What impulse is needed for a plane mass 78 tonne to change its velocity by 65 m s-1? Give your answer to the nearest whole number.

A 50 kg mass is sitting on a frictionless surface. A 200N force pushes the mass for 8.2 seconds until the mass reaches the desired velocity. Calculate the impulse in N.s. Only put in the numerical value. Answer to 1 decimal place and do not write the unit in your answer.

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单

SPHY001 Practice Quiz - Unit 08 | LA048

The change in an object’s momentum is equal to

查看解析

登录即可查看完整答案

类似问题

Which of the following is a correct definition of *impulse* in physics?

A 50 kg mass is sitting on a frictionless surface. A 157N force pushes the mass for 4.2 seconds until the mass reaches the desired velocity. Calculate the impulse in N.s. Only put in the numerical value. Answer to 1 decimal place and do not write the unit in your answer.

Which force-time curve has the smaller impulse, A or B?

A golf club exerts a force of 462 N on a golf ball ball for 18 ms. What impulse is given to the ball? Give your answer to one decimal place.

What is the impulse received by a ball of mass 0.5 kg that changes its velocity by 28 m s-1? Give your answer to the nearest whole number.

A tennis racquet exerts a force of 133 N on a ball for 0.035 s. What impulse is given to the ball? Give your answer to one decimal place.

What impulse is needed for a plane mass 78 tonne to change its velocity by 65 m s-1? Give your answer to the nearest whole number.

A 50 kg mass is sitting on a frictionless surface. A 200N force pushes the mass for 8.2 seconds until the mass reaches the desired velocity. Calculate the impulse in N.s. Only put in the numerical value. Answer to 1 decimal place and do not write the unit in your answer.

更多留学生实用工具

希望你的学习变得更简单

Which of the following is a correct definition of impulse in physics?