alleryA man weighs 60 kg in an elevator. The elevator accelerates upward at 2 m/s² (g = 10 m/s²). The apparent weight is:
A480 N
B720 N
C600 N
D800 N
Answer & Solution
Correct answer: B. 720 N
We have W' = m(g + a).
That is W' = 60(10 + 2).
So W' = 720 N.
Keep practising Unit 1B: Kinematics: 2D Motion & Projectiles
Browse all Unit 1B: Kinematics: 2D Motion & Projectiles questions for AP Physics 1, or explore more Physics topics.
Related questions
The kinetic energy of an electron of mass 9.1 × 10⁻³¹ kg moving at 1 × 10⁶ m/s is approximThe work done by gravity on a 2 kg body falling 5 m freely (g = 10 m/s²) is:For a freely falling body, as it descends, what remains constant (no air drag)?Gravitational potential energy near Earth's surface for height h is:The energy possessed by a body by virtue of its configuration is called:A pump lifts 100 kg of water through 10 m in 5 s (g = 10 m/s²). The power developed is:1 kWh in joules is:Instantaneous power of a force F acting on a particle moving with velocity v is: