Question

1.) After lockdown, Pedro has finally able to road test his brand-new car. He is waiting at a stoplight. When it finally turns green, he accelerated from rest at a rate of a 6 m/s² for a time of 4 s. Determine his initial speed.

 

a. 6m/s

b. cannot be determined

c. 24 m/s

d. zero

 

2.) A parachutist weighs 1500 N. When he opens his parachute, it pulls upwards on him with a force of 2000 N. What is the magnitude of the resultant force acting on him?

 

a. 1.33 N

b. 3500 N

c. 500 N

d. 0.75 N

Answer 1

1. Answer: d. zero

2. Answer: c. 500 N