Q. 2

Expert-verifiedFound in: Page 227

Book edition
4th

Author(s)
Randall D. Knight

Pages
1240 pages

ISBN
9780133942651

At what speed does a 1000 kg compact car have the same kinetic energy as a 20,000 kg truck going 25 km/h?

The speed should be 11.8 km/hr.

20,000 kg truck going 25 km/h.

Mass of car is 1000 kg .

The kinetic energy is calculated by

KE =1/2 (mv^{2}) ....................................(1)

Use equation (1) to calculate the kinetic energy of car and truck and equate them

As given kinetic energy for car and truck is equal, so,

K.E_{car }= K.E_{truck}

94% of StudySmarter users get better grades.

Sign up for free