Calculate the force required to accelerate a car from rest to a velocity of 30 m s − 1 in 10 s e c o n d s . The mass of the car is 1500 k g . Options: A . &nbsp 4000 N B . &nbsp 3000 N C . &nbsp 4500 N D . &nbsp 3500 N

Calculate the force required to accelerate a car from rest to a veloci

Question

Calculate the force required to accelerate a car from rest to a velocity of

30 m s^{- 1}

10 s e c o n d s

. The mass of the car is

1500 k g

Options:

A . 4000 N

B . 3000 N

C . 4500 N

D . 3500 N

Answer: Option C
:
C
Here, mass m =

1500 k g

Initial velocity, u = 0, final velocity, v =

30 m s^{- 1}

, time taken, t =

10 s

.
Now, putting these values in the first equation of motion,

v = u + a t

, we get

30 = 0 + a \times t

\Rightarrow

10 a = 30

\Rightarrow

a = 3 m s^{- 2}

Now, putting

m = 1500 k g

and a =

3 m s^{- 2}

in equation,

F = m \times a

, we get

F = 1500 \times 3

4500 N

.
Thus, the force required is

4500 N

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. An object moves with an acceleration of 3 m s−2 when a force of 30 N is applied. The mass of....of 30 N is applied. The mass of the body is:

Question 2. A car of mass 1,000 kg is moving at a speed of 20 ms−1. It is brought to rest at a distance ....distance of 50 m. Calculate the net force acting on the car.

Question 3. Which of the following has SI unit as kg m s−2?....

Question 4. If A and B are two objects of masses 6 kg and 3 kg respectively, then the inertia of object A ....of object A is more than that of object B.

Question 5. A water tanker filled up to two-thirds of its height is moving with a uniform speed. On sudden application of ....application of brake, the water in the tank will _____.

Question 6. Jaikishan and Arun are pushing each other as shown in the given figure. Jaikishan’s push is weaker than that of Arun. ....figure.Jaikishan and Arun move in the given direction because of:

Question 7. A cannon ball of mass 2 kg is fired at a target 500 m away. The 400 kg cannon recoils with a velocit....moves with constant velocity, when will it hit the target?

Question 8. When a bullet is fired from a pistol, in which direction the pistol moves (ignore the force exerted by hand)?....

Question 9. A bullet of mass 20 g moving with a velocity of 100 ms−1 strikes a wooden block of mass 80 ....gets embedded into it. Calculate velocity of the combined system.

Question 10. It is easier to stop a 60 g tennis ball as compared to a 150 g cricket ball, both havin....compared to a 150 g cricket ball, both having the same velocity.

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

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0

Submit Solution

More Questions on This Topic :

Latest Videos

Latest Test Papers