The change in the kinetic energy of the monster truck during the time is 507500 J and the right option is B). 507500
<h3>What is kinetic energy?</h3>
Kinetic energy is the energy of a body due to its motion.
To calculate the increase in the kinetic energy of the monster truck, we use the formula below.
Formula:
- ΔK.E = m(v²-u²)/2............. Equation 1
Where:
- ΔK.E = Increase in kinetic energy of the monster truck
- m = mass of the monster truck
- v = final velocity of the monster truck
- u = initial velocity of the monster truck.
From the question,
Given:
- m = 5000 kg
- v = 18 m/s
- u = 11 m/s.
Substitute these values into equation 1
- ΔK.E = 5000(18²-11²)/2
- ΔK.E = 2500(324-121)
- ΔK.E = 2500(203
- ΔK.E = 507500 J
Hence, The increase in the kinetic energy of the monster truck during the time is 507500 J and the right option is B). 507500.
Learn more about kinetic energy here: brainly.com/question/25959744
Answer:
A.l walked in the park on tuesdayevening
The answer is 2.93m (to 2 dp)
Given that,
bug speed, v= 0.85 m/s
time, t =42 s
Final position of bug on meter stick was 27 cm
Starting position of bug on meter stick = ?
Since we know that,
s = vt
s= 0.85*42 = 35.7 cm
this is the distance covered by bug in the given time and velocity.
since the bug is moving in negative direction, starting point will be:
27.0 cm+ 35.7 cm = 62.7 cm
The bugs starting position on meter stick was 62.7 cm.
