A car travels at a speed of 45 m/s when the driver sees the traffic light turning red. The driver can coast on the brakes and stop in 5s, or he can keep going and slam on the brakes in 1s. In which scenario is there a greater amount of impulse? Group of answer choices

The 1s stop

The 5s stop

Both equally

Must know the mass to calculate impulse

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

How are calculation for velocity and speed different

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?