a.
Average acceleration of dragster.
a.
Answer to Problem 74A
Average acceleration of dragster is
Explanation of Solution
Given :
Mass of dragster
Initial velocity
Final velocity
Time taken to reach final velocity from initial velocity
Formula used :
According to first equation of motion,
Where,
a is acceleration
t is time.
v is final velocity
u is initial velocity
Calculation:
Substitute the value of u, v and t in equation of motion.
Conclusion:
Therefore, acceleration of dragster is
b.
Average force applied on dragster.
b.
Answer to Problem 74A
Net average force on dragster is 38915.08 N.
Explanation of Solution
Given :
Mass of dragster
Initial velocity
Final velocity
Acceleration is
Time taken to reach final velocity from initial velocity
Formula used :
Force is given by,
Where,
m is mass
a is acceleration.
Calculation:
Substitute the values to find the net force on dragster.
Conclusion:
Therefore, net average force on dragster is 38915.08 N.
c.
Horizontal force exerted by seat on the driver.
c.
Answer to Problem 74A
Horizontal force applied by seat on driver is 3030.76 N.
Explanation of Solution
Given :
Mass of the driver
Initial velocity
Final velocity
Acceleration is
Formula used :
Force is given by,
Where,
m is mass
a is acceleration.
Calculation:
Substitute the values to find the horizontal force applied by seat on driver.
So horizontal force applied by seat on driver is 3030.76 N.
Chapter 4 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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