Q:

A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

A) 2.87 sec	B) 3.44 sec
C) 4.65 sec	D) 5.41 sec

Answer & Explanation Answer: B) 3.44 sec

Explanation:

It is launched vertically with an initial speed of 110 ft/sec.

It will reach maximum height when the speed drops to 0.

Vo=110 feet per second

ho=2 feet

So, h(t) = -16t^2 +110t +2

Take the derivative: h'(t) = 110 -32t

The maximum height will be at the inflection when the derivative crosses the x-axis, then h'(t)=0.

So, set h'(t)=0 and solve for t:

0 = 110 -32t

-110 = -32t

t=3.4375

t=3.44 seconds.

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

3 6125

Q:

When you travel in certain parts of India, you will notice red soil. What is the main reason for this colour?

A) Abundance of magnesium	B) Accumulated humus
C) Presence of ferric oxides	D) Abundance of Phosphates

Answer & Explanation Answer: C) Presence of ferric oxides

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Indian Geography

12 6123

Q:

STEP is the abbreviated name of the welfare programme to help

A) Children	B) Woman
C) Farmers	D) Senior citizens

Answer & Explanation Answer: B) Woman

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Indian Economy

15 6117

Q:

Google has removed the Personal Loan applications in which country, amid safety concerns?

A) Pakistan	B) China
C) Bangladesh	D) India

Answer & Explanation Answer: D) India

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: General Awareness
Exam Prep: Bank Exams

2 6117

Q:

What kind of attempts is made by individuals to obtain confidential information from a person by falsifying their identity ?

A) Spyware scams	B) Phishing scams
C) Computer viruses	D) None

Answer & Explanation Answer: B) Phishing scams

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Computer
Job Role: Bank Clerk

15 6113

Q:

What is the full form of GSLV ?

A) Ground Satellite Launching Vehicle	B) Geosynchronous Satellite Launching Vehicle
C) Gravity synchronous Launching Vehicle	D) Group satellite Launching vehicle

Answer & Explanation Answer: B) Geosynchronous Satellite Launching Vehicle

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: General Awareness

10 6111

Q:

Who won the world’s largest pre-college science competition in the US in the environmental engineering category for his project on biodegradation of pesticides ?

A) Shanmuga Sundaram	B) Prashant Ranganathan
C) Suresh Kumar	D) Vijay Ragunathan

Answer & Explanation Answer: B) Prashant Ranganathan

Explanation:

An Indian boy has won the world’s largest pre-college science competition in the US in the environmental engineering category for his project on biodegradation of pesticides. Prashant Ranganathan, a 12th grader from Jamshedpur, alongwith over 20 high school students from various parts of India, participated in the Intel International Science and Engineering Fair.

Report Error

View Answer Report Error Discuss

Filed Under: Honours and Awards
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

4 6111

Q:

Which of the statements given below are correct?

A) Lewis Hamilton won the Formula One 2017 United States Grand Prix.

B) Sebastian Vettel won the Formula One 2017 Singapore Grand Prix.

C) Garbine Muguruza won the Tennis 2017 French Open Women's Singles.

A) Only A	B) Only B
C) A and C	D) A, B and C

Questions

Quick Links