A body of mass 2kg moving vertically upwards has its velocity increased uniformly from 10ms-1...

JAMB 1997

A body of mass 2kg moving vertically upwards has its velocity increased uniformly from 10ms^-1 to 40ms^-1 in 4s. Neglecting air resistance, calculate the upward vertical force acting on the body.[g = 10 ms^-1]

A. 15N
B. 20N
C. 35N
D. 45N

Your School's Whatsapp Group - Join Us now

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Correct Answer: Option C

Explanation

F = mg + ma

F = 2 [10 + \(\frac{(40 - 10)}{4}\)]

F = 35 N

Previous Next

Go back to Phy classroom

Report an Error Ask A Question Download App

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

What is the meaning of agricultural sciences? Answer this

1 Answers · Agricultural Science · 3 days ago
Does WAEC give Calculator to student for there exam? Answer this

2 Answers · Mathematics · 2 days ago
2(3)+2? Answer this

1 Answers · Mathematics · 2 days ago

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

A body of mass 2kg moving vertically upwards has its velocity increased uniformly from 10ms-1...

Correct Answer: Option C

Explanation

Contributions ({{ comment_count }})

Please wait...

Modal title

Report

Block User

{{ feedback_modal_data.title }}

Quick Questions

Post your Contribution

Sign In