Question:
A ball is thrown from the top of a building of height 25 m with an initial velocity of 15 m/sec. If the height of the ball h from ground at any point of time t is given by \(h=25+10t-3t^2\). The time taken by the ball to reach the ground is
A ball is thrown from the top of a building of height 25 m with an initial velocity of 15 m/sec. If the height of the ball h from ground at any point of time t is given by \(h=25+10t-3t^2\). The time taken by the ball to reach the ground is
Updated On: May 17, 2024
- 15 sec
- 10 sec
- 5 sec
- \(\frac{5}{3}\ \text{sec}\)
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
The correct option is (C): 5 sec
Was this answer helpful?
0
0
Top Questions on Time Speed and Distance
- Two places A and B are 45 kms apart and connected by a straight road. Anil goes from A to B while Sunil goes from B to A. Starting at the same time, they cross each other in exactly 1 hour 30 minutes. If Anil reaches B exactly 1 hour 15 minutes after Sunil reaches A, the speed of Anil, in km per hour, is
- CAT - 2024
- Quantitative Aptitude
- Time Speed and Distance
- A bus leaves the bus stand at 9 am and travels at a constant speed of 60 km/h. It reaches its destination 3.5 hours later than its original time. The next day, it travels \( \frac{2}{3} \) of its route within \( \frac{1}{3} \) of its initial time and travels the rest of the route within 40 minutes. At what time does it reach its destination normally?
- CAT - 2024
- Quantitative Aptitude
- Time Speed and Distance
- Two points A and B are 45 km apart. Anil started from A. Sunil started from B. They met each other after 1 hour 30 mins. and after meeting, they continued towards their destinations. Time taken by Anil to reach Point B was 1 hr 15 mins more than the time taken by Sunil to reach point A. Find speed of Anil
- CAT - 2024
- Quantitative Aptitude
- Time Speed and Distance
- A bus leaves city A at 11:20 am and arrives at city B 240 km away at 4:20 pm on the same day. What is the average speed of the bus for the journey?
- KMAT KERALA - 2024
- Quantitative Aptitude
- Time Speed and Distance
- If Jack walks at 4 kmph he reaches the bus stop 10 minutes late. Starting from home at the same time, if he walks at 6 kmph, he reaches the bus stop 5 minutes early. What is the distance she walks to the bus stop?
- KMAT KERALA - 2024
- Quantitative Aptitude
- Time Speed and Distance
View More Questions
Questions Asked in AP POLYCET exam
- If the centroid of a triangle formed by the points \((a,b), (b, c)\) and \((c,a)\) is at the origin, then \(a^3+b^3+c^3 =\)
- AP POLYCET - 2024
- Triangles
- If a sin 45°= b cosec 30°, then the value of \(\frac {a^4}{b^4}\) is
- AP POLYCET - 2024
- Trigonometry
- The ratio of the sum and product of the roots of the quadratic equation \(7x^2-12x+18=0\) is
- AP POLYCET - 2024
- Quadratic Equations
- If the slope of the line joining the points (4,2) and (3,-k) is -2, then the value of k is
- AP POLYCET - 2024
- Slope of a line
- If 25 cm each is the object and image distances due to convex lens, then its focal length is
- AP POLYCET - 2024
- Light - Reflection and Refraction
View More Questions