An object is projected upwards with a velocity of 100 m/s.The time after which&#

Sail E0 Webinar

Question

An object is projected upwards with a velocity of 100 m/s.The time after which it will strike the ground is (g =

10 m s^{- 2})

Options:

A . 10 sec

B . 20 sec

C . 15 sec

D . 5 sec

Answer: Option B
:
B
Time of flight =

\frac{2 u}{g} = \frac{2 \times 100}{10} = 20 s e c

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with t....floor for 0.01 sec, the average acceleration during contact is

Question 2. A point moves with uniform acceleration and v1,v2 and v3 denote the average velocities in the three successive....of time t1,t2 and t3. Which of the following relations is correct?

Question 3. The relation between time and distance is t=αx2+βx where α and β are constants. T....and distance is t=αx2+βx where α and β are constants. The retardation is

Question 4. A stone dropped from the top of the tower touches the ground in 4 sec. The height of the tower is about ....of the tower is about

Question 5. A body is moving in a straight line, starting its journey from origin. At any instant, its velocity is given by,K1....when it is at a distance s from the origin:

Question 6. The initial velocity of a particle is 10 m/sec and its retardation is 2 m/sec2. The distance moved by the part....moved by the particle in 5th second of its motion is

Question 7. A particle located at x = 0, at time t = 0 starts moving along the positive x direction with a velocity v that varies as....α √x.The displacement of the particle varies with time as

Question 8. A train has a speed of 60 km/h for the first one hour and 40 km/h for the next half hour. Its average speed in....km/h for the next half hour. Its average speed in km/h is

Question 9. The initial velocity of a particle is u (at t=0) and the acceleration f is given by f=a t wher....

Question 10. A body is moving from rest under constant acceleration and let S1 be the displacement in the first (p−1....the displacement in the first p seconds. The displacement in (p2−p+1)th second will be

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

GPOE / GPA Combined 1 Free Mock Test SAIL JO E-0 2024

Chapter 3.1 : INTRODUCTION Chapter 3 : Sinter Plant SAIL E0 - GPOE/GPA 2024

Chapter 2.3 : COAL HANDLING PLANT - Set 1 Chapter 2 : Coke Ovens and Coal Chemicals SAIL E0 - GPOE/GPA 2024

Chapter 1.1 : INTRODUCTION Chapter 1 : Raw Material Handling Plant SAIL E0 - GPOE/GPA 2024

DSP Combined 1 Free Revision Test SAIL JO E-0