Question

a car is being driven by a force of 5 x 10¹⁰ N. When travelling at a speed of 10 m/s it takes 2 minutes for this car to reach the river side. Calculate the work done.​

Answer 1

Question:

• A car is being driven by a force of 5 x 10¹⁰ N. When travelling at a speed of 10 m/s it takes 2 minutes for this car to reach the river side. Calculate the work done.

Answer:

• Work done is 60 × 10¹² J.

Step-by-step explanation:

Given

• Force = 5 x 10¹⁰ N
• Speed = 10 m/s
• Time = 2 minutes

To Find:

• Work done?

Solution :

Formulae used in this question ::

• Distance=Speed xTime

Work done =Force×Distance

Firstly converting time into seconds om minutes. As we know that 1 minute 60 seconds. Therefore ::

→2 minutes = (2 x 60) seconds

→2 minutes = 120 seconds

ence, time in seconds is 120 seconds.

Now finding distance by using formula f distance ::

→Distance = Speed x Time

lugging all values in formula we get,

→Distance = 10 x 120

→Distance = 1200 m

Now finding work done by using ormula of work done ::

Work done=Force x Distance

lugging all values in formula we get,

Work done= (5 × 10¹⁰) x 1200

le can write it as,

→Work done 5 × 10¹⁰ × 12 × 100

→Work done = 5 × 10¹⁰ × 12×10²

→Work done = 5 × 12 × 10¹⁰×10²

$Work \: \: done= 6 0 \times 10^{10 + 2}$

= Work done 60 × 10¹² J