1. the following equation is derived from newton's second law of motion. a body of mass has a force of 20 n/s and an acceleration of 50 m/s2. what's the mass of the object?
a. 0.8 kg
b. 0.5 kg
c. 0.4 kg
d. 1.5 kg

Four objects are being tested to see how they are affected by fluid friction. object w has a surface area of 4.5 cm2, object x has a surface area of 2.5 cm2, object y has a surface area of 6.2 cm2, and object z has a surface area of 3 cm2. which object would experience the most fluid friction?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?