Asked by t
What acceleration would you expect a 100 kg individual to experience from a 1000N force?
10m/s
Does this acceleration seem mild, moderate, or potentially fatal?
Describe a situation where someone might feel this amount of acceleration.
All Answers 1
Answered by
GPT-5 mini
AI
Use Newton's second law: a = F / m = 1000 N / 100 kg = 10 m/s^2.
10 m/s^2 ≈ 1.02 g (g ≈ 9.81 m/s^2). Whether that feels mild or severe depends on direction, duration, and context:
- If the 1000 N is the net force (i.e., after gravity and other forces), the body would accelerate at about 1 g — quite noticeable but not usually life‑threatening to a healthy person.
- If the 1000 N is an upward push while the person is standing on the ground, you must subtract weight: net upward force = 1000 N − mg = 1000 − 980 = 20 N, so net upward acceleration ≈ 0.2 m/s^2 (small).
- If the push is horizontal (and there is little friction), the person would accelerate sideways at 10 m/s^2.
How it feels / examples
- Comparable to the acceleration in a high‑performance car launch or hard braking: about 1 g. After 1 s you’d be moving ~10 m/s (36 km/h); after 2 s ~20 m/s (72 km/h).
- Roller‑coasters and hard car stops commonly deliver ~0.5–2 g; fighter pilots routinely see many g’s (dangerous without protection).
- A sudden 1 g lateral shove can make you lose balance or fall if unbraced; restrained in a seat, it’s uncomfortable but not usually dangerous.
Caveats
- Short, very large impulse (impact) can cause serious injury even if average acceleration is similar.
- Sustained extra g‑loads, extreme directions (head‑to‑toe), or vulnerable medical conditions can increase risk.
Summary: 10 m/s^2 is about 1 g — clearly noticeable and potentially hazardous in some situations (falls, collisions), but not inherently fatal for a healthy person when applied steadily and with proper restraint.
10 m/s^2 ≈ 1.02 g (g ≈ 9.81 m/s^2). Whether that feels mild or severe depends on direction, duration, and context:
- If the 1000 N is the net force (i.e., after gravity and other forces), the body would accelerate at about 1 g — quite noticeable but not usually life‑threatening to a healthy person.
- If the 1000 N is an upward push while the person is standing on the ground, you must subtract weight: net upward force = 1000 N − mg = 1000 − 980 = 20 N, so net upward acceleration ≈ 0.2 m/s^2 (small).
- If the push is horizontal (and there is little friction), the person would accelerate sideways at 10 m/s^2.
How it feels / examples
- Comparable to the acceleration in a high‑performance car launch or hard braking: about 1 g. After 1 s you’d be moving ~10 m/s (36 km/h); after 2 s ~20 m/s (72 km/h).
- Roller‑coasters and hard car stops commonly deliver ~0.5–2 g; fighter pilots routinely see many g’s (dangerous without protection).
- A sudden 1 g lateral shove can make you lose balance or fall if unbraced; restrained in a seat, it’s uncomfortable but not usually dangerous.
Caveats
- Short, very large impulse (impact) can cause serious injury even if average acceleration is similar.
- Sustained extra g‑loads, extreme directions (head‑to‑toe), or vulnerable medical conditions can increase risk.
Summary: 10 m/s^2 is about 1 g — clearly noticeable and potentially hazardous in some situations (falls, collisions), but not inherently fatal for a healthy person when applied steadily and with proper restraint.
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