Why do athletes wear shoes with spikes?To look stylishTo increase frictionTo decrease frictionTo make them jump higher

Which type of shoes are typically worn by gymnasts to prevent their feet from shifting inside the shoes during acrobatic movements?

Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.1. Yet, it's a remnant from the beginning of our obsession with sneakers.2. A closer look shows odd spikes emerging from the sole, which reveal its real purpose: competitive running.3. The shoe, which dates back to the early 1860s, barely resembles today’s running footwear.4. The spikes may have been meant to help with traction.5. The world’s oldest existing running shoe looks suitable for a formal occasion.

This movements involving large muscle groups used in continuous rhythmic activity in which at least one foot contacts the floor at all times. It has developed to decrease the lower leg overuse injuries associated with high-impact classes.*1 pointA. AEROBIC KICKBOXINGB. STEP AEROBICSC. BELLY DANCINGD. LOW-IMPACT AEROBIC

Which of the following would be an advantage of using the Klapskate as performance enhancing wearable equipment during a speed skating competition? raises the work/stroke rario. decreases the stroke frequency. prevents plantar flexion during the glide phase of skating. promotes a longer ice-foot contact time.

How can friction be both resistive and motive during running?